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Today’s growing economy requires innovative, new solutions that provide both better battery performance and cleaner energy solutions. With Protochips’ machine-vision powered suite of in-situ TEM tools you can utilize the electron microscope as a real-time laboratory to image and measure the underlying mechanisms that control the performance and behavior of energy materials on the nanoscale.    

 

Batteries Fusion

Fusion AX: High temperature heating, electrical and electrothermal in vacuum

Visualize the nanoscale processes that control solid-state battery material performance. Observe ion transfer reactions, growth kinetics, capacity degradation mechanisms and more without compromising resolution

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Batteries Poseidon

Poseidon AX: Liquid, electrochemical and liquid heating in situ studies

Observe charge-discharge reactions in real time, test how different electrolytes suppress dendrite formation and study the nanoscale mechanisms that control capacity fading. These are just some of the in-situ TEM studies projects made possible with liquid-EM.

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Watch dynamic behavior of real samples in situ.

#FindYourBreakthrough | FLASH TALKS: EP # Formation mechanism of high-index faceted Pt-Bi alloy nanoparticles by evaporation-induced growth from metal salts Presented by: Dr. Kunmo Koo from Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center. Read the full publication here: https://www.nature.com/articles/s41467-023-39458-6 Products featured: Protochips Atmosphere AX gas cell system for TEM with AXON machine vision software
FLASH TALKS: EP #15 - Formation Mechanism of High-index Faceted Pt-Bi Alloy Nanoparticles
#FindYourBreakthrough | FLASH TALKS: EP # Formation mechanism of high-index faceted Pt-Bi alloy nanoparticles by evaporation-induced growth from metal salts Presented by: Dr. Kunmo Koo from Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center. Read the full publication here: https://www.nature.com/articles/s41467-023-39458-6 Products featured: Protochips Atmosphere AX gas cell system for TEM with AXON machine vision software
This video gives a detailed explanation on how to download and install AXON Studio from the Success Community. Find your free version of AXON Studio here: https://success.protochips.com/s/?language=en_US
How to Install AXON Studio?
This video gives a detailed explanation on how to download and install AXON Studio from the Success Community. Find your free version of AXON Studio here: https://success.protochips.com/s/?language=en_US
DR. YAO YANG | University of California, Berkeley (Miller Fellow 2021-2024); Cornell University (PhD 2021) In this talk, I will present my latest work on multimodal operando studies of combining EC-STEM and correlative synchrotron based X-ray methods to elucidate the longstanding enigmatic nature of Cu active sites as Cu nanograins for selective CO2 electroreduction. I will introduce our recent progress on developing operando electrochemical liquid-cell scanning transmission electron microscopy (EC-STEM), which simultaneously enables quantitative electrochemistry on microelectrodes and quantitative STEM based imaging, diffraction and spectroscopy. Operando electrochemical 4D-STEM in liquid has shown great potentials to interrogate complex structures of active sites of energy materials at solid-liquid interfaces. Synchrotron based operando electrochemical resonant soft X-ray scattering (EC-RSoXS), based on the same liquid-cell holder as the EC-STEM setup, provides complementary information on chemical environment and interparticle dynamics of nanoparticle ensemble catalysts. This study also points out the need for rigorous examination of beam induced effects (both electrons and photons) on samples in liquid. We anticipate that the continuous advances in analytical techniques will pave the way for multimodal operando electron microscopy and X-ray methods to become indispensable, broadly available tools, for understanding interfacial reaction mechanisms for the broad chemistry and energy materials communities. Key Publications: 1. Yang, Y., Muller, D., Abruña, H. Yang, P. et al. Operando Studies Reveal Active Cu Nanograins for CO2 Electroreduction. Nature 2023, 614, 262. 2. Yang, Y., Yang, P. et al. Operando Resonant Soft X-ray Scattering Studies of Chemical Environment and Interparticle Dynamics of Cu Nanocatalysts for CO2 Electroreduction. J. Am. Chem. Soc. 2022, 144, 8927.
Webinar #10 - E-chem for TEM 101: E-chem for TEM: Studying Catalysts, Part 3
DR. YAO YANG | University of California, Berkeley (Miller Fellow 2021-2024); Cornell University (PhD 2021) In this talk, I will present my latest work on multimodal operando studies of combining EC-STEM and correlative synchrotron based X-ray methods to elucidate the longstanding enigmatic nature of Cu active sites as Cu nanograins for selective CO2 electroreduction. I will introduce our recent progress on developing operando electrochemical liquid-cell scanning transmission electron microscopy (EC-STEM), which simultaneously enables quantitative electrochemistry on microelectrodes and quantitative STEM based imaging, diffraction and spectroscopy. Operando electrochemical 4D-STEM in liquid has shown great potentials to interrogate complex structures of active sites of energy materials at solid-liquid interfaces. Synchrotron based operando electrochemical resonant soft X-ray scattering (EC-RSoXS), based on the same liquid-cell holder as the EC-STEM setup, provides complementary information on chemical environment and interparticle dynamics of nanoparticle ensemble catalysts. This study also points out the need for rigorous examination of beam induced effects (both electrons and photons) on samples in liquid. We anticipate that the continuous advances in analytical techniques will pave the way for multimodal operando electron microscopy and X-ray methods to become indispensable, broadly available tools, for understanding interfacial reaction mechanisms for the broad chemistry and energy materials communities. Key Publications: 1. Yang, Y., Muller, D., Abruña, H. Yang, P. et al. Operando Studies Reveal Active Cu Nanograins for CO2 Electroreduction. Nature 2023, 614, 262. 2. Yang, Y., Yang, P. et al. Operando Resonant Soft X-ray Scattering Studies of Chemical Environment and Interparticle Dynamics of Cu Nanocatalysts for CO2 Electroreduction. J. Am. Chem. Soc. 2022, 144, 8927.
DR. YUKI SASAKI | Japan Fine Ceramics Center Dendrite growth of Zn on the anode of Zn-based rechargeable batteries can cause short-circuiting. To avoid the formation of dendrites, the Zn deposition/dissolution behaviors and their dependence on the electrochemical conditions should be clarified. In this study, in situ transmission electron microscopy (TEM) observations using an electrochemical chip (e-chip) were conducted to visualize the initial stage of the electrodeposition of Zn on an anode. The electrochemical data corresponding to the in situ TEM observations were precisely and extensively analyzed. The combined optimized use of a potentiostat and transmission electron microscope enabled electrochemical electrodes to be isolated completely from the potential of the TEM column. This environment stabilized the electrodeposition process during the in situ TEM observations. Under constant-current mode, the electric potential was varied, resulting in the deposition of various amounts of Zn onto the Pt working electrode. Controlling the surface materials of the electrodes and the electrochemical conditions was important for in situ TEM observations of electrochemical reactions.
Webinar #9 - E-chem for TEM 101: E-chem for TEM: Studying Batteries, Part 3
DR. YUKI SASAKI | Japan Fine Ceramics Center Dendrite growth of Zn on the anode of Zn-based rechargeable batteries can cause short-circuiting. To avoid the formation of dendrites, the Zn deposition/dissolution behaviors and their dependence on the electrochemical conditions should be clarified. In this study, in situ transmission electron microscopy (TEM) observations using an electrochemical chip (e-chip) were conducted to visualize the initial stage of the electrodeposition of Zn on an anode. The electrochemical data corresponding to the in situ TEM observations were precisely and extensively analyzed. The combined optimized use of a potentiostat and transmission electron microscope enabled electrochemical electrodes to be isolated completely from the potential of the TEM column. This environment stabilized the electrodeposition process during the in situ TEM observations. Under constant-current mode, the electric potential was varied, resulting in the deposition of various amounts of Zn onto the Pt working electrode. Controlling the surface materials of the electrodes and the electrochemical conditions was important for in situ TEM observations of electrochemical reactions.
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Prof. Yifei Yuan | Wenzhou University Despite the promising future of lithium-oxygen (Li-O2) battery in replacing conventional lithium-ion battery for high-energy applications, the complicated reaction mechanisms determining the sluggish discharge-charge kinetics have not been fully understood. Particularly, with an important reaction intermediate, i.e. LiO2 (O2-), gradually emerging and being doubted to be responsible for the sluggish reaction kinetics, an in-depth understanding of the reaction mechanisms is necessary. In this webinar, how an in situ liquid transmission electron microscopic experiment is designed and used to explore the (electro)chemical fundamentals in a working Li-O2 battery is demonstrated. Based on the nanoscale microscopic observation through the liquid electrolyte, the nucleation and growth behaviors of Li2O2 at the electrode/electrolyte interface and within the electrolyte are analyzed, rooted on which an O2- diffusion-limited kinetics was further confirmed to validate the long-existing hypothesis associated with O2- chemistry. This study reveals further details of underlying mechanisms in a working Li-O2 battery and identifies various limiting factors controlling the discharge and charge processes, pointing to several promising design strategies for effective battery performance enhancement.
Webinar #7 - E-chem for TEM 101: E chem for TEM Studying Corrosion, Part 2
Prof. Yifei Yuan | Wenzhou University Despite the promising future of lithium-oxygen (Li-O2) battery in replacing conventional lithium-ion battery for high-energy applications, the complicated reaction mechanisms determining the sluggish discharge-charge kinetics have not been fully understood. Particularly, with an important reaction intermediate, i.e. LiO2 (O2-), gradually emerging and being doubted to be responsible for the sluggish reaction kinetics, an in-depth understanding of the reaction mechanisms is necessary. In this webinar, how an in situ liquid transmission electron microscopic experiment is designed and used to explore the (electro)chemical fundamentals in a working Li-O2 battery is demonstrated. Based on the nanoscale microscopic observation through the liquid electrolyte, the nucleation and growth behaviors of Li2O2 at the electrode/electrolyte interface and within the electrolyte are analyzed, rooted on which an O2- diffusion-limited kinetics was further confirmed to validate the long-existing hypothesis associated with O2- chemistry. This study reveals further details of underlying mechanisms in a working Li-O2 battery and identifies various limiting factors controlling the discharge and charge processes, pointing to several promising design strategies for effective battery performance enhancement.
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Protochips - Introducing the AX Solutions
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AXON Software 10.7 Feature Reveal
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CV Curve
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In this Flash Talk ep. 14, Dr. Diana Piankova from the Max Planck Institute of Colloids and Interfaces is presenting her work on "Following carbon condensation by in situ TEM: Towards a rational understanding of the processes in the synthesis of nitrogen-doped carbonaceous materials." Read the full publication here: https://pubs.rsc.org/en/content/articlelanding/2022/ta/d2ta05247d 0:58 Introduction 3:10 Ex-situ study 7:28 In-situ study 10:39 New materials design
FLASH TALKS: EP #14 - Following carbon condensation by in situ TEM
In this Flash Talk ep. 14, Dr. Diana Piankova from the Max Planck Institute of Colloids and Interfaces is presenting her work on "Following carbon condensation by in situ TEM: Towards a rational understanding of the processes in the synthesis of nitrogen-doped carbonaceous materials." Read the full publication here: https://pubs.rsc.org/en/content/articlelanding/2022/ta/d2ta05247d 0:58 Introduction 3:10 Ex-situ study 7:28 In-situ study 10:39 New materials design
Dr. Sanjay Choudhary | University of Virginia Dr. Choudhary will be summarizing his experience and research in the area of corrosion and how he utilizes in situ TEM with electrochemistry.
Webinar #6 - E-chem for TEM 101: E chem for TEM Studying Corrosion, Part 1
Dr. Sanjay Choudhary | University of Virginia Dr. Choudhary will be summarizing his experience and research in the area of corrosion and how he utilizes in situ TEM with electrochemistry.
DR. ALLA SOLOGUBENKO | ETH Zürich The understanding of molecular mechanisms of water oxidation reactions is very important for development of renewable energy storage solutions [1]. Inspired by a naturally occuring water splitting catalyst, the Mn4CaO5 particles [2], many first-row transition metal compounds are being synthesized and studied as catalysts in oxygen-evolution reactions (OER) at various conditions [3, 4]. For that purpose, copper(II) complexes are considered to be very promising, with the [Cu(TMC) (H2O)](NO3)2 (TMC = 1,4,8,11‐ tetramethyl‐1,4,8,11‐tetraazacyclotetradecane) compound (further, the Cu(II)-complex) reported among the most efficient copper-based catalyst for electrocatalytic OER in neutral aqueous solutions [5, 6, 7]. However, the control over the stability and catalytic activity of the compound during OER is handicapped by a complicated reaction path, and general lack of understanding of the molecular mechanism of the reaction [7]. In our study, we followed the OER in the presence of the Cu(II)-complex at the same conditions as in [7], but employing the most advanced analytical and computational techniques, including in-situ vis-spectroelectrochemistry, in-situ electrochemical liquid-phase transmission electron microscopy (EC-LPTEM) using a dedicated liquid-cell reactor module of Protochips Inc. and extended X-ray absorption fine structure (EXAFS) studies. [1] S. Yao et al., Science, 357 (2017). [2] Y. Umena, K. Kawakami, J. R. Shen, N.Kamiya, Nature, 473 (2011). [3] M. Yagi, M. Kaneko, Chem. Rev 101 (2001). [4] M. M. Najafpour et al., Chem. Rev. 116 (2016). [5] X. Liu et al., Electrochem. Commun. 46 (2014). [6] M. M. Najafpour, S. Mehrabani, Y. Mousazade, M. Holynska, Dalton Trans. 47 (2018). [7] F. Yu et al., Chem. Commun. 52 (2016).
Webinar #5 - E-chem for TEM: Studying Catalyst Materials (Part 2)
DR. ALLA SOLOGUBENKO | ETH Zürich The understanding of molecular mechanisms of water oxidation reactions is very important for development of renewable energy storage solutions [1]. Inspired by a naturally occuring water splitting catalyst, the Mn4CaO5 particles [2], many first-row transition metal compounds are being synthesized and studied as catalysts in oxygen-evolution reactions (OER) at various conditions [3, 4]. For that purpose, copper(II) complexes are considered to be very promising, with the [Cu(TMC) (H2O)](NO3)2 (TMC = 1,4,8,11‐ tetramethyl‐1,4,8,11‐tetraazacyclotetradecane) compound (further, the Cu(II)-complex) reported among the most efficient copper-based catalyst for electrocatalytic OER in neutral aqueous solutions [5, 6, 7]. However, the control over the stability and catalytic activity of the compound during OER is handicapped by a complicated reaction path, and general lack of understanding of the molecular mechanism of the reaction [7]. In our study, we followed the OER in the presence of the Cu(II)-complex at the same conditions as in [7], but employing the most advanced analytical and computational techniques, including in-situ vis-spectroelectrochemistry, in-situ electrochemical liquid-phase transmission electron microscopy (EC-LPTEM) using a dedicated liquid-cell reactor module of Protochips Inc. and extended X-ray absorption fine structure (EXAFS) studies. [1] S. Yao et al., Science, 357 (2017). [2] Y. Umena, K. Kawakami, J. R. Shen, N.Kamiya, Nature, 473 (2011). [3] M. Yagi, M. Kaneko, Chem. Rev 101 (2001). [4] M. M. Najafpour et al., Chem. Rev. 116 (2016). [5] X. Liu et al., Electrochem. Commun. 46 (2014). [6] M. M. Najafpour, S. Mehrabani, Y. Mousazade, M. Holynska, Dalton Trans. 47 (2018). [7] F. Yu et al., Chem. Commun. 52 (2016).
DR. NATHALY ORTIZ PEÑA | IPGP / Université de Paris Morphological and Structural Evolution of Co3O4 Nanoparticles Revealed by in Situ Electrochemical TEM during Electrocatalytic Water Oxidation Herein we present the implementation of an in situ electrochemical Transmission Electron Microscopy (in situ EC-TEM) device to track the structural evolution of cobalt oxide nanoparticles in oxygen evolution conditions. In first instance, we developed a protocol not only for the sample deposition but also for the observation and data recording, to ensure that the in situ observations mimic as well as possible the lab-scale experiments. Different aspects that could affect the fidelity of the data compared with the ex situ experiments have been evaluated. In summary, we studied the morphological transformation of cobalt oxide spinels in operational conditions for the oxygen evolution reaction. The study was performed after thorough evaluation of the role of the observation conditions, including electron dose, electrochemical conditions and electrolyte’s nature. Optimized conditions allowed direct tracking of the catalyst nanostructure in relation with the electrochemical measurements within the electrolyte. Post-mortem selected area diffraction, energy dispersive and electron energy loss spectroscopies of, both, in situ and ex situ electrode materials, permitted to complete the picture about the electronic state and phase transformation induced during the electrocatalytic process. It was possible for the first time to observe directly the gradual amorphization of Co3O4 nanoparticles at the water oxidation potential. Such amorphization reaches a plateau after the initial couple of minutes in the observation conditions. Although, the re-structuration is significant, the overall route of the efficiency seems to be preserved, from where this could be considered as an activation process.
Webinar #4 - E-chem for TEM: Studying Catalyst Materials (Part 1)
DR. NATHALY ORTIZ PEÑA | IPGP / Université de Paris Morphological and Structural Evolution of Co3O4 Nanoparticles Revealed by in Situ Electrochemical TEM during Electrocatalytic Water Oxidation Herein we present the implementation of an in situ electrochemical Transmission Electron Microscopy (in situ EC-TEM) device to track the structural evolution of cobalt oxide nanoparticles in oxygen evolution conditions. In first instance, we developed a protocol not only for the sample deposition but also for the observation and data recording, to ensure that the in situ observations mimic as well as possible the lab-scale experiments. Different aspects that could affect the fidelity of the data compared with the ex situ experiments have been evaluated. In summary, we studied the morphological transformation of cobalt oxide spinels in operational conditions for the oxygen evolution reaction. The study was performed after thorough evaluation of the role of the observation conditions, including electron dose, electrochemical conditions and electrolyte’s nature. Optimized conditions allowed direct tracking of the catalyst nanostructure in relation with the electrochemical measurements within the electrolyte. Post-mortem selected area diffraction, energy dispersive and electron energy loss spectroscopies of, both, in situ and ex situ electrode materials, permitted to complete the picture about the electronic state and phase transformation induced during the electrocatalytic process. It was possible for the first time to observe directly the gradual amorphization of Co3O4 nanoparticles at the water oxidation potential. Such amorphization reaches a plateau after the initial couple of minutes in the observation conditions. Although, the re-structuration is significant, the overall route of the efficiency seems to be preserved, from where this could be considered as an activation process.
#FindYourBreakthrough | FLASH TALKS: EP #13 Corrosion Studies on AM SS 316L in Liquid Cell TEM Presented by: Dr. Mengkun Tian from Georgia Institute of Technology – Institute for Electronics and Nanotechnologies. Read the full publication here: https://www.sciencedirect.com/science/article/pii/S0010938X22005777 Products featured: Protochips Poseidon liquid cell system for TEM
FLASH TALKS: EP #13 - Corrosion Studies on AM SS 316L in Liquid Cell TEM
#FindYourBreakthrough | FLASH TALKS: EP #13 Corrosion Studies on AM SS 316L in Liquid Cell TEM Presented by: Dr. Mengkun Tian from Georgia Institute of Technology – Institute for Electronics and Nanotechnologies. Read the full publication here: https://www.sciencedirect.com/science/article/pii/S0010938X22005777 Products featured: Protochips Poseidon liquid cell system for TEM
Data Export in 60 Seconds - Protochips
Dr. Arnaud Demortière | CNRS / Université de Picardie Jules Verne Dr. Demortière will be summarizing his experience and research in the area of batteries, including Li-ion batteries and potential alternative electrode materials.
Webinar #3 - E-chem for TEM 101: E-chem for TEM Studying Battery Materials
Dr. Arnaud Demortière | CNRS / Université de Picardie Jules Verne Dr. Demortière will be summarizing his experience and research in the area of batteries, including Li-ion batteries and potential alternative electrode materials.
Presenter: Dr. Yuki Sasaki, Japan Fine Ceramics Center Topic: Dr. Sasaki is a researcher of Battery Materials Group at Japan Fine Ceramics Center. His work focuses specifically on the liquid phase electron microscope observations of electrochemical reactions. Here he will discuss using both a platinum pseudo reference electrode and a reversible hydrogen electrode during in situ electrochemical experiments. There are pros and cons to each, watch and learn from his expertise using Protochips Poseidon liquid cell system for in situ TEM. See Dr. Sasaki’s ResearchGate page here: https://www.researchgate.net/profile/Yuki-Sasaki-7 Curious about purchasing your own Poseidon system to do liquid cell research in the TEM? Contact us at sales@protochips.com for more information
Webinar #2 - E-chem for TEM 101: Notes on Reference Electrodes for In Situ Electrochemistry
Presenter: Dr. Yuki Sasaki, Japan Fine Ceramics Center Topic: Dr. Sasaki is a researcher of Battery Materials Group at Japan Fine Ceramics Center. His work focuses specifically on the liquid phase electron microscope observations of electrochemical reactions. Here he will discuss using both a platinum pseudo reference electrode and a reversible hydrogen electrode during in situ electrochemical experiments. There are pros and cons to each, watch and learn from his expertise using Protochips Poseidon liquid cell system for in situ TEM. See Dr. Sasaki’s ResearchGate page here: https://www.researchgate.net/profile/Yuki-Sasaki-7 Curious about purchasing your own Poseidon system to do liquid cell research in the TEM? Contact us at sales@protochips.com for more information
#FindYourBreakthrough | FLASH TALKS: EP #12 Operando liquid cell electron microscopy of discharge and charge kinetics in lithium-oxygen batteries Presented by: Dr. Yifei Yuan from Wenzhou University. Read the full publication here: https://www.sciencedirect.com/science/article/abs/pii/S2211285518302775?via%3Dihub
FLASH TALKS: EP #12 - Operando Liquid Cell Electron Microscopy of Discharge and Charge Kinetics
#FindYourBreakthrough | FLASH TALKS: EP #12 Operando liquid cell electron microscopy of discharge and charge kinetics in lithium-oxygen batteries Presented by: Dr. Yifei Yuan from Wenzhou University. Read the full publication here: https://www.sciencedirect.com/science/article/abs/pii/S2211285518302775?via%3Dihub
#FindYourBreakthrough | FLASH TALKS: EP #11 Monitoring of CaCO3 Nanoscale Structuration through Real-Time Liquid Phase Transmission Electron Microscopy and Hyperpolarized NMR Presented by: Dr. Vinavadini Ramnarain from IPCMS/University of Strasbourg. Read the full publication here: https://pubs.acs.org/doi/10.1021/jacs.2c05731?ref=pdf
FLASH TALKS: EP #11 - Monitoring of CaCO3 Nanoscale Structuration through Real-Time Liquid Phase
#FindYourBreakthrough | FLASH TALKS: EP #11 Monitoring of CaCO3 Nanoscale Structuration through Real-Time Liquid Phase Transmission Electron Microscopy and Hyperpolarized NMR Presented by: Dr. Vinavadini Ramnarain from IPCMS/University of Strasbourg. Read the full publication here: https://pubs.acs.org/doi/10.1021/jacs.2c05731?ref=pdf
#FindYourBreakthrough | FLASH TALKS: EP #10 Fabrication of micro-batteries for operando TEM electrochemistry using aerosol-jet printing Presented by: Jędrzej Morzy from the University of Cambridge. Read the full publication here: https://onlinelibrary.wiley.com/doi/full/10.1002/admi.202200530
FLASH TALKS: EP #10 - Fabrication of micro-batteries for operando TEM electrochemistry
#FindYourBreakthrough | FLASH TALKS: EP #10 Fabrication of micro-batteries for operando TEM electrochemistry using aerosol-jet printing Presented by: Jędrzej Morzy from the University of Cambridge. Read the full publication here: https://onlinelibrary.wiley.com/doi/full/10.1002/admi.202200530
In this Flash Talk episode 9 Joanna Korpanty from Northwestern University, Department of Chemistry will tell you something about her recent publication on solvated polymeric nanomaterials in liquid cell electron microscopy. A worm-to-micelle transformation was triggered via organic solvent mixing during the measurements, showing dynamics not possible with cryo-electron microscopy. This work shows great potential in future liquid cell experiments in other solvents then water. Full publication: https://linkinghub.elsevier.com/retrieve/pii/S266638642200039X
FLASH TALKS: EP #9 - Studying organic solvated polymeric nanomaterials with LCTEM
In this Flash Talk episode 9 Joanna Korpanty from Northwestern University, Department of Chemistry will tell you something about her recent publication on solvated polymeric nanomaterials in liquid cell electron microscopy. A worm-to-micelle transformation was triggered via organic solvent mixing during the measurements, showing dynamics not possible with cryo-electron microscopy. This work shows great potential in future liquid cell experiments in other solvents then water. Full publication: https://linkinghub.elsevier.com/retrieve/pii/S266638642200039X
#FindYourBreakthrough | FLASH TALKS: EP #8 Attachment of Iron Oxide Nanoparticles to Carbon Nanofibers Studies by In-Situ Liquid Phase Transmission Electron Microscopy Presented by: Dr. Nynke A. Krans from Utrecht University. Read the full publication here: https://pubmed.ncbi.nlm.nih.gov/30468967/
FLASH TALKS: EP #8 - Attachment of Iron Oxide Nanoparticles to Carbon Nanofibers Studies by In-Situ
#FindYourBreakthrough | FLASH TALKS: EP #8 Attachment of Iron Oxide Nanoparticles to Carbon Nanofibers Studies by In-Situ Liquid Phase Transmission Electron Microscopy Presented by: Dr. Nynke A. Krans from Utrecht University. Read the full publication here: https://pubmed.ncbi.nlm.nih.gov/30468967/
#FindYourBreakthrough | FLASH TALKS: EP #7 Catalyst Particle Growth at the Nanoscale In Situ TEM of TiO2 Supported Gold Nanoparticle Growth Presented by: Dr. Mark J. Meijerink from Utrecht University. Read the full publication here: https://pubs.acs.org/doi/10.1021/acs.jpcc.9b10237
FLASH TALKS: EP #7 - Catalyst Particle Growth at the Nanoscale In Situ TEM of TiO2 Supported Gold
#FindYourBreakthrough | FLASH TALKS: EP #7 Catalyst Particle Growth at the Nanoscale In Situ TEM of TiO2 Supported Gold Nanoparticle Growth Presented by: Dr. Mark J. Meijerink from Utrecht University. Read the full publication here: https://pubs.acs.org/doi/10.1021/acs.jpcc.9b10237
#FindYourBreakthrough | FLASH TALKS: EP #6 Dynamic Restructuring of Supported Metal Nanoparticles and its Implications for Structure Insensitive Catalysis Presented by: Dr. Charlotte Vogt from Technion – Israel Institute of Technology. Read the full publication here: https://www.nature.com/articles/s41467-021-27474-3
FLASH TALKS: EP #6 - Dynamic Restructuring of Supported Metal Nanoparticles and its Implications
#FindYourBreakthrough | FLASH TALKS: EP #6 Dynamic Restructuring of Supported Metal Nanoparticles and its Implications for Structure Insensitive Catalysis Presented by: Dr. Charlotte Vogt from Technion – Israel Institute of Technology. Read the full publication here: https://www.nature.com/articles/s41467-021-27474-3
Finally, you can accurately measure, manage and analyze the true impact of the electron beam on your sample, in ways you never thought possible, making your experiments more consistent and repeatable, and maximizing your understanding Visit: http://www.protochips.com
Introducing AXON Dose™
Finally, you can accurately measure, manage and analyze the true impact of the electron beam on your sample, in ways you never thought possible, making your experiments more consistent and repeatable, and maximizing your understanding Visit: http://www.protochips.com
#FindYourBreakthrough | FLASH TALKS: EP #5 High Temperature Dynamics of Nanocrystalline Graphene – A Time Resolved HRTEM Study Presented by: Dr. C.N. Shyam Kumar while at the Institute of Nanotechnology at Karlsruhe Institute of Technology Find the full publication here: https://pubs.rsc.org/en/content/articlehtml/2017/nr/c7nr03276e?casa_token=Kd76o5Cy5poAAAAA:Sxeq8iS-FU6guregHJ-QcXM8umNESoRBrpRv5E4KXgMIeXDf-UOcRHyQ3y7hQcQqmol6Q2QEM_e_
FLASH TALKS: EP #5 - High Temperature Dynamics of Nanocrystalline Graphene
#FindYourBreakthrough | FLASH TALKS: EP #5 High Temperature Dynamics of Nanocrystalline Graphene – A Time Resolved HRTEM Study Presented by: Dr. C.N. Shyam Kumar while at the Institute of Nanotechnology at Karlsruhe Institute of Technology Find the full publication here: https://pubs.rsc.org/en/content/articlehtml/2017/nr/c7nr03276e?casa_token=Kd76o5Cy5poAAAAA:Sxeq8iS-FU6guregHJ-QcXM8umNESoRBrpRv5E4KXgMIeXDf-UOcRHyQ3y7hQcQqmol6Q2QEM_e_
#FindYourBreakthrough | FLASH TALKS: EP #4 In situ monitoring of exopolymer-dependent Mn mineralization on bacterial surfaces Presented by: Dr. Thaïs Couasnon and Dr. Damien Alloyeau from Université de Paris, CNRS. Read the full paper here: https://advances.sciencemag.org/content/6/27/eaaz3125#BIBL For more product information, visit our website at www.protochips.com or reach out to us at https://www.protochips.com/contact-us/
FLASH TALKS: EP #4 - In situ Monitoring of Exopolymer-dependent Mn Mineralization
#FindYourBreakthrough | FLASH TALKS: EP #4 In situ monitoring of exopolymer-dependent Mn mineralization on bacterial surfaces Presented by: Dr. Thaïs Couasnon and Dr. Damien Alloyeau from Université de Paris, CNRS. Read the full paper here: https://advances.sciencemag.org/content/6/27/eaaz3125#BIBL For more product information, visit our website at www.protochips.com or reach out to us at https://www.protochips.com/contact-us/
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Studio Spotlight - AXON Studio Pack and Share
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Studying Catalyst Activation at the Nanoscale
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AXON Studio Feature Spotlight - Filtering
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Studio Spotlight - Tutorial with David Nackashi
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#FindYourBreakthrough | FLASH TALKS: EP #3 Iron-silica Interaction During Reduction of Precipitated Silica-promoted Iron Oxides Using In Situ XRD and TEM Presented by: Dr. Jaco Olivier from Nelson Mandela University. Read the full publication here: https://www.sciencedirect.com/science/article/abs/pii/S0926860X21000454?via%3Dihub
FLASH TALKS: EP #3 - Iron-silica Interaction During Reduction of Precipitated Silica-promoted
#FindYourBreakthrough | FLASH TALKS: EP #3 Iron-silica Interaction During Reduction of Precipitated Silica-promoted Iron Oxides Using In Situ XRD and TEM Presented by: Dr. Jaco Olivier from Nelson Mandela University. Read the full publication here: https://www.sciencedirect.com/science/article/abs/pii/S0926860X21000454?via%3Dihub
Peering Into Viruses and Vaccines Using High Resolution Imaging
Video courtesy Dr. Saso Sturm of the Jozef Stefan Institute. Acquired using the Poseidon Select liquid cell holder with liquid heating capability. More info at www.protochips.com
In Situ Liquid Heating: Inducing Nanoparticle Nucleation
Video courtesy Dr. Saso Sturm of the Jozef Stefan Institute. Acquired using the Poseidon Select liquid cell holder with liquid heating capability. More info at www.protochips.com
Read more about the observation of charging and discharging of lithium batteries via in situ TEM by Mehdi et al. here: https://pubs.acs.org/doi/10.1021/acs.nanolett.5b00175
In Situ Liquid Electrochemistry: Charging a Nanoscale Lithium Ion Battery
Read more about the observation of charging and discharging of lithium batteries via in situ TEM by Mehdi et al. here: https://pubs.acs.org/doi/10.1021/acs.nanolett.5b00175
AXON Studio Collaboration | Studio Spotlight
#FindYourBreakthrough | FLASH TALKS: EP #2 Using CryoChips to Solve Structures of Low Molecular Weight Proteins using Cryoelectron Microscopy Presented by: Dr. Mike Casasanta from The Pennsylvania State University. Read more about using MEMS-based chips for CryoEM here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534443/
FLASH TALKS: EP #2 - Using CryoChips to Solve Structures of Low Molecular Weight Proteins
#FindYourBreakthrough | FLASH TALKS: EP #2 Using CryoChips to Solve Structures of Low Molecular Weight Proteins using Cryoelectron Microscopy Presented by: Dr. Mike Casasanta from The Pennsylvania State University. Read more about using MEMS-based chips for CryoEM here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534443/
The study of iron reduction is extremely challenging. As shown below, the presence of even small amounts of oxygen are sufficient to suppress the wanted reduction. Our Atmosphere system is the only in situ TEM gas cell on the market designed entirely of stainless steel with helium leak-tight metal seals that enable even the reduction of iron oxide to metallic iron. The “match correlation” charts are a more quantitative signal of when dynamics are occurring, and is automatically calculated by our AXON machine vision software platform. As you can see, on the left there are no dynamics detected by the software due to the minute amount of oxygen present. Want to learn more about why our AXON empowered Atmosphere system is the only choice for your catalyst or corrosion research? Download our brochure here: https://www.protochips.com/gate/test-copy-copy/ or reach out to us here: https://www.protochips.com/contact-us/
Successful Reduction Experiments with Atmosphere
The study of iron reduction is extremely challenging. As shown below, the presence of even small amounts of oxygen are sufficient to suppress the wanted reduction. Our Atmosphere system is the only in situ TEM gas cell on the market designed entirely of stainless steel with helium leak-tight metal seals that enable even the reduction of iron oxide to metallic iron. The “match correlation” charts are a more quantitative signal of when dynamics are occurring, and is automatically calculated by our AXON machine vision software platform. As you can see, on the left there are no dynamics detected by the software due to the minute amount of oxygen present. Want to learn more about why our AXON empowered Atmosphere system is the only choice for your catalyst or corrosion research? Download our brochure here: https://www.protochips.com/gate/test-copy-copy/ or reach out to us here: https://www.protochips.com/contact-us/
#FindYourBreakthrough | FLASH TALKS: EP #1 Reaction Dynamics of Calcium-ion Battery Electrolytes Explored by In Situ Electrochemical TEM Presented by: Professor Alexander Robertson from University of Oxford. Read the full paper here: https://pubs.acs.org/doi/10.1021/acsenergylett.0c01153?ref=pdf
FLASH TALKS: EP #1 - Reaction Dynamics of Calcium-ion Battery Electrolytes
#FindYourBreakthrough | FLASH TALKS: EP #1 Reaction Dynamics of Calcium-ion Battery Electrolytes Explored by In Situ Electrochemical TEM Presented by: Professor Alexander Robertson from University of Oxford. Read the full paper here: https://pubs.acs.org/doi/10.1021/acsenergylett.0c01153?ref=pdf
With ongoing oxidation, you are seeing the spreading of a porous oxide structure resulting from so called “Kirkendall effect”, which is visualized in the atomic level of resolution during the heating ramp. The integrated metadata to was used to plotting and analyzing trends. Copper catalyst particle analyzed in the Protochips Atmosphere in situ TEM system while utilizing the AXON Machine Vision Software platform for on-the-fly stabilization, real-time data integration, and data analysis and video generation. Read more about Atmosphere and AXON on our website: www.protochips.com’
Machine Vision Unveils Catalyst Deactivation
With ongoing oxidation, you are seeing the spreading of a porous oxide structure resulting from so called “Kirkendall effect”, which is visualized in the atomic level of resolution during the heating ramp. The integrated metadata to was used to plotting and analyzing trends. Copper catalyst particle analyzed in the Protochips Atmosphere in situ TEM system while utilizing the AXON Machine Vision Software platform for on-the-fly stabilization, real-time data integration, and data analysis and video generation. Read more about Atmosphere and AXON on our website: www.protochips.com’
Studio Experience Fusion Clip #1
Desktop software for managing, reviewing, analyzing and publishing TEM images and metadata in your office or workspace. Sifting through and reviewing 10,000+ TEM images to prepare for a high-impact publication or share important findings with your colleagues has never been more intuitive. AXON Studio gives you a new level of control over the data set produced by AXON Synchronicity, removing the inevitable post-processing burdens that come once you complete your TEM experiment, whether in situ or traditional. Quickly review images and metadata side by side and identify hidden trends, prepare easily-downloadable packages for your collaborators, and publish your results in a fraction of the time.
Creating the Connected Lab
Desktop software for managing, reviewing, analyzing and publishing TEM images and metadata in your office or workspace. Sifting through and reviewing 10,000+ TEM images to prepare for a high-impact publication or share important findings with your colleagues has never been more intuitive. AXON Studio gives you a new level of control over the data set produced by AXON Synchronicity, removing the inevitable post-processing burdens that come once you complete your TEM experiment, whether in situ or traditional. Quickly review images and metadata side by side and identify hidden trends, prepare easily-downloadable packages for your collaborators, and publish your results in a fraction of the time.
Dr. Rémy Berthier (Protochips) and Dr. Greg Moldovan (point electronic GmbH) will share their knowledge and expertise on in situ TEM electrical characterization and EBIC analysis of devices, and how to combine the two for high-resolution microscopy. As electronic devices keep getting smaller, the increase in spatial and temporal resolution that the TEM provides is becoming critical to key innovation-driving sectors, including failure analysis, device manufacturing, and device research. Publication: https://aip.scitation.org/doi/10.1063/5.0040243
An Introduction to In Situ Electron Beam Induced Current Analysis with TEM
Dr. Rémy Berthier (Protochips) and Dr. Greg Moldovan (point electronic GmbH) will share their knowledge and expertise on in situ TEM electrical characterization and EBIC analysis of devices, and how to combine the two for high-resolution microscopy. As electronic devices keep getting smaller, the increase in spatial and temporal resolution that the TEM provides is becoming critical to key innovation-driving sectors, including failure analysis, device manufacturing, and device research. Publication: https://aip.scitation.org/doi/10.1063/5.0040243
#GETREADY For the latest updates, please visit www.protochips.com
Get Ready! - Protochips
#GETREADY For the latest updates, please visit www.protochips.com
Fusion Select transforms your TEM into an in-situ laboratory using the flexibility of MEMS-based E-chips that deliver accurate, precise experimental conditions. Capable of sourcing and measuring picoamp level electrical signals and swift temperature changes up to 1200 °C, Fusion Select electrothermal analysis offers unmatched versatility and capability, accelerating results.
Introduction to Fusion Select Heating amp; Electrical Biasing for In Situ TEM
Fusion Select transforms your TEM into an in-situ laboratory using the flexibility of MEMS-based E-chips that deliver accurate, precise experimental conditions. Capable of sourcing and measuring picoamp level electrical signals and swift temperature changes up to 1200 °C, Fusion Select electrothermal analysis offers unmatched versatility and capability, accelerating results.
AXON – What are you waiting for?
WEBINAR: Wednesday, September 30th, 2020 In this brief 30 minute webisode, Product Manager Jen McConnell will review the most common hardships related to operating or using a transmission electron microscopy lab during this new era of restrictions and how the AXON software platform can help you overcome many of them. Are you or your lab struggling to manage through travel or capacity restrictions, limited lab internet connectivity, or large data transfers? If you’re a researcher that utilizes TEMs, either at your facility or a collaborator’s, learn how AXON can: Make it easy to participate in TEM sessions remotely, even with users at multiple sites Review all data from the lab as it’s taken in real time Analyze image stacks off-line at your convenience using the AXON Notebook application If you’re a lab manager who’s looking to get more utilization of your instruments, learn how AXON can: Safely allow a point of access between your lab and the internet, without exposing your TEM or camera computer Provide a consolidated dashboard of all experimental parameters for your collaborators to follow along during sessions Easily allow lab personnel to create data packages in sizes that are easier to transfer to your users
An Introduction to Safe and Efficient Remote TEM Collaboration Using the AXON Software Platform
WEBINAR: Wednesday, September 30th, 2020 In this brief 30 minute webisode, Product Manager Jen McConnell will review the most common hardships related to operating or using a transmission electron microscopy lab during this new era of restrictions and how the AXON software platform can help you overcome many of them. Are you or your lab struggling to manage through travel or capacity restrictions, limited lab internet connectivity, or large data transfers? If you’re a researcher that utilizes TEMs, either at your facility or a collaborator’s, learn how AXON can: Make it easy to participate in TEM sessions remotely, even with users at multiple sites Review all data from the lab as it’s taken in real time Analyze image stacks off-line at your convenience using the AXON Notebook application If you’re a lab manager who’s looking to get more utilization of your instruments, learn how AXON can: Safely allow a point of access between your lab and the internet, without exposing your TEM or camera computer Provide a consolidated dashboard of all experimental parameters for your collaborators to follow along during sessions Easily allow lab personnel to create data packages in sizes that are easier to transfer to your users
This webinar will show you what happens when we add the AXON system to a well-characterized in-situ heating experiment that we’ve performed hundreds of times. The only variable is AXON and the results demonstrate the impact AXON has on your TEM. We think you’ll be just as impressed as we were, since this is the first time we’ve used AXON to prove its value on actual in-situ research. For more information, please visit www.protochips.com/AXON
AXON Unleashed: Delivering on the Promise of Atomic Scale Dynamics in the TEM (Webinar)
This webinar will show you what happens when we add the AXON system to a well-characterized in-situ heating experiment that we’ve performed hundreds of times. The only variable is AXON and the results demonstrate the impact AXON has on your TEM. We think you’ll be just as impressed as we were, since this is the first time we’ve used AXON to prove its value on actual in-situ research. For more information, please visit www.protochips.com/AXON
In this webinar, we will have presentations from both Dr. Madeline Dukes from Protochips and Dr. Dave Loveday from Gamry Instruments who will share their knowledge and expertise in fundamental electrochemical measurements and how they can be used for operando observations at the nanoscale that will accelerate research for fuel cell catalysts, batteries, and corrosion.
Introduction to Electrochemistry and its Integration to In Situ TEM
In this webinar, we will have presentations from both Dr. Madeline Dukes from Protochips and Dr. Dave Loveday from Gamry Instruments who will share their knowledge and expertise in fundamental electrochemical measurements and how they can be used for operando observations at the nanoscale that will accelerate research for fuel cell catalysts, batteries, and corrosion.
In this webinar, you will see a demonstration of the AXON workflow – how it fully optimizes both high resolution imaging and in situ experiments on multiple samples. Additionally, we’ll exhibit the capability and advantages of the Synchronicity software module to capture all TEM and in situ data during the experiment, sharing data gathered using multiple holders.
Webinar - AXON : Revolutionizing the in Situ TEM Workflow
In this webinar, you will see a demonstration of the AXON workflow – how it fully optimizes both high resolution imaging and in situ experiments on multiple samples. Additionally, we’ll exhibit the capability and advantages of the Synchronicity software module to capture all TEM and in situ data during the experiment, sharing data gathered using multiple holders.

FLASH TALKS: EP #15 - Formation Mechanism of High-index Faceted Pt-Bi Alloy Nanoparticles

#FindYourBreakthrough | FLASH TALKS: EP # Formation mechanism of high-index faceted Pt-Bi alloy nanoparticles by evaporation-induced growth from metal salts Presented by: Dr. Kunmo Koo from Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center. Read the full publication here: https://www.nature.com/articles/s41467-023-39458-6 Products featured: Protochips Atmosphere AX gas cell system for TEM with AXON machine vision software

How to Install AXON Studio?

This video gives a detailed explanation on how to download and install AXON Studio from the Success Community. Find your free version of AXON Studio here: https://success.protochips.com/s/?language=en_US

Webinar #10 - E-chem for TEM 101: E-chem for TEM: Studying Catalysts, Part 3

DR. YAO YANG | University of California, Berkeley (Miller Fellow 2021-2024); Cornell University (PhD 2021) In this talk, I will present my latest work on multimodal operando studies of combining EC-STEM and correlative synchrotron based X-ray methods to elucidate the longstanding enigmatic nature of Cu active sites as Cu nanograins for selective CO2 electroreduction. I will introduce our recent progress on developing operando electrochemical liquid-cell scanning transmission electron microscopy (EC-STEM), which simultaneously enables quantitative electrochemistry on microelectrodes and quantitative STEM based imaging, diffraction and spectroscopy. Operando electrochemical 4D-STEM in liquid has shown great potentials to interrogate complex structures of active sites of energy materials at solid-liquid interfaces. Synchrotron based operando electrochemical resonant soft X-ray scattering (EC-RSoXS), based on the same liquid-cell holder as the EC-STEM setup, provides complementary information on chemical environment and interparticle dynamics of nanoparticle ensemble catalysts. This study also points out the need for rigorous examination of beam induced effects (both electrons and photons) on samples in liquid. We anticipate that the continuous advances in analytical techniques will pave the way for multimodal operando electron microscopy and X-ray methods to become indispensable, broadly available tools, for understanding interfacial reaction mechanisms for the broad chemistry and energy materials communities. Key Publications: 1. Yang, Y., Muller, D., Abruña, H. Yang, P. et al. Operando Studies Reveal Active Cu Nanograins for CO2 Electroreduction. Nature 2023, 614, 262. 2. Yang, Y., Yang, P. et al. Operando Resonant Soft X-ray Scattering Studies of Chemical Environment and Interparticle Dynamics of Cu Nanocatalysts for CO2 Electroreduction. J. Am. Chem. Soc. 2022, 144, 8927.

Webinar #9 - E-chem for TEM 101: E-chem for TEM: Studying Batteries, Part 3

DR. YUKI SASAKI | Japan Fine Ceramics Center Dendrite growth of Zn on the anode of Zn-based rechargeable batteries can cause short-circuiting. To avoid the formation of dendrites, the Zn deposition/dissolution behaviors and their dependence on the electrochemical conditions should be clarified. In this study, in situ transmission electron microscopy (TEM) observations using an electrochemical chip (e-chip) were conducted to visualize the initial stage of the electrodeposition of Zn on an anode. The electrochemical data corresponding to the in situ TEM observations were precisely and extensively analyzed. The combined optimized use of a potentiostat and transmission electron microscope enabled electrochemical electrodes to be isolated completely from the potential of the TEM column. This environment stabilized the electrodeposition process during the in situ TEM observations. Under constant-current mode, the electric potential was varied, resulting in the deposition of various amounts of Zn onto the Pt working electrode. Controlling the surface materials of the electrodes and the electrochemical conditions was important for in situ TEM observations of electrochemical reactions.

Standard Reference Electrode - Protochips

For more information, please visit http://www.protochips.com

Webinar #7 - E-chem for TEM 101: E chem for TEM Studying Corrosion, Part 2

Prof. Yifei Yuan | Wenzhou University Despite the promising future of lithium-oxygen (Li-O2) battery in replacing conventional lithium-ion battery for high-energy applications, the complicated reaction mechanisms determining the sluggish discharge-charge kinetics have not been fully understood. Particularly, with an important reaction intermediate, i.e. LiO2 (O2-), gradually emerging and being doubted to be responsible for the sluggish reaction kinetics, an in-depth understanding of the reaction mechanisms is necessary. In this webinar, how an in situ liquid transmission electron microscopic experiment is designed and used to explore the (electro)chemical fundamentals in a working Li-O2 battery is demonstrated. Based on the nanoscale microscopic observation through the liquid electrolyte, the nucleation and growth behaviors of Li2O2 at the electrode/electrolyte interface and within the electrolyte are analyzed, rooted on which an O2- diffusion-limited kinetics was further confirmed to validate the long-existing hypothesis associated with O2- chemistry. This study reveals further details of underlying mechanisms in a working Li-O2 battery and identifies various limiting factors controlling the discharge and charge processes, pointing to several promising design strategies for effective battery performance enhancement.

Protochips - Introducing the AX Solutions

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AXON Software 10.7 Feature Reveal

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CV Curve

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FLASH TALKS: EP #14 - Following carbon condensation by in situ TEM

In this Flash Talk ep. 14, Dr. Diana Piankova from the Max Planck Institute of Colloids and Interfaces is presenting her work on "Following carbon condensation by in situ TEM: Towards a rational understanding of the processes in the synthesis of nitrogen-doped carbonaceous materials." Read the full publication here: https://pubs.rsc.org/en/content/articlelanding/2022/ta/d2ta05247d 0:58 Introduction 3:10 Ex-situ study 7:28 In-situ study 10:39 New materials design

Webinar #6 - E-chem for TEM 101: E chem for TEM Studying Corrosion, Part 1

Dr. Sanjay Choudhary | University of Virginia Dr. Choudhary will be summarizing his experience and research in the area of corrosion and how he utilizes in situ TEM with electrochemistry.

Webinar #5 - E-chem for TEM: Studying Catalyst Materials (Part 2)

DR. ALLA SOLOGUBENKO | ETH Zürich The understanding of molecular mechanisms of water oxidation reactions is very important for development of renewable energy storage solutions [1]. Inspired by a naturally occuring water splitting catalyst, the Mn4CaO5 particles [2], many first-row transition metal compounds are being synthesized and studied as catalysts in oxygen-evolution reactions (OER) at various conditions [3, 4]. For that purpose, copper(II) complexes are considered to be very promising, with the [Cu(TMC) (H2O)](NO3)2 (TMC = 1,4,8,11‐ tetramethyl‐1,4,8,11‐tetraazacyclotetradecane) compound (further, the Cu(II)-complex) reported among the most efficient copper-based catalyst for electrocatalytic OER in neutral aqueous solutions [5, 6, 7]. However, the control over the stability and catalytic activity of the compound during OER is handicapped by a complicated reaction path, and general lack of understanding of the molecular mechanism of the reaction [7]. In our study, we followed the OER in the presence of the Cu(II)-complex at the same conditions as in [7], but employing the most advanced analytical and computational techniques, including in-situ vis-spectroelectrochemistry, in-situ electrochemical liquid-phase transmission electron microscopy (EC-LPTEM) using a dedicated liquid-cell reactor module of Protochips Inc. and extended X-ray absorption fine structure (EXAFS) studies. [1] S. Yao et al., Science, 357 (2017). [2] Y. Umena, K. Kawakami, J. R. Shen, N.Kamiya, Nature, 473 (2011). [3] M. Yagi, M. Kaneko, Chem. Rev 101 (2001). [4] M. M. Najafpour et al., Chem. Rev. 116 (2016). [5] X. Liu et al., Electrochem. Commun. 46 (2014). [6] M. M. Najafpour, S. Mehrabani, Y. Mousazade, M. Holynska, Dalton Trans. 47 (2018). [7] F. Yu et al., Chem. Commun. 52 (2016).

Webinar #4 - E-chem for TEM: Studying Catalyst Materials (Part 1)

DR. NATHALY ORTIZ PEÑA | IPGP / Université de Paris Morphological and Structural Evolution of Co3O4 Nanoparticles Revealed by in Situ Electrochemical TEM during Electrocatalytic Water Oxidation Herein we present the implementation of an in situ electrochemical Transmission Electron Microscopy (in situ EC-TEM) device to track the structural evolution of cobalt oxide nanoparticles in oxygen evolution conditions. In first instance, we developed a protocol not only for the sample deposition but also for the observation and data recording, to ensure that the in situ observations mimic as well as possible the lab-scale experiments. Different aspects that could affect the fidelity of the data compared with the ex situ experiments have been evaluated. In summary, we studied the morphological transformation of cobalt oxide spinels in operational conditions for the oxygen evolution reaction. The study was performed after thorough evaluation of the role of the observation conditions, including electron dose, electrochemical conditions and electrolyte’s nature. Optimized conditions allowed direct tracking of the catalyst nanostructure in relation with the electrochemical measurements within the electrolyte. Post-mortem selected area diffraction, energy dispersive and electron energy loss spectroscopies of, both, in situ and ex situ electrode materials, permitted to complete the picture about the electronic state and phase transformation induced during the electrocatalytic process. It was possible for the first time to observe directly the gradual amorphization of Co3O4 nanoparticles at the water oxidation potential. Such amorphization reaches a plateau after the initial couple of minutes in the observation conditions. Although, the re-structuration is significant, the overall route of the efficiency seems to be preserved, from where this could be considered as an activation process.

FLASH TALKS: EP #13 - Corrosion Studies on AM SS 316L in Liquid Cell TEM

#FindYourBreakthrough | FLASH TALKS: EP #13 Corrosion Studies on AM SS 316L in Liquid Cell TEM Presented by: Dr. Mengkun Tian from Georgia Institute of Technology – Institute for Electronics and Nanotechnologies. Read the full publication here: https://www.sciencedirect.com/science/article/pii/S0010938X22005777 Products featured: Protochips Poseidon liquid cell system for TEM

Data Export in 60 Seconds - Protochips

Webinar #3 - E-chem for TEM 101: E-chem for TEM Studying Battery Materials

Dr. Arnaud Demortière | CNRS / Université de Picardie Jules Verne Dr. Demortière will be summarizing his experience and research in the area of batteries, including Li-ion batteries and potential alternative electrode materials.

Webinar #2 - E-chem for TEM 101: Notes on Reference Electrodes for In Situ Electrochemistry

Presenter: Dr. Yuki Sasaki, Japan Fine Ceramics Center Topic: Dr. Sasaki is a researcher of Battery Materials Group at Japan Fine Ceramics Center. His work focuses specifically on the liquid phase electron microscope observations of electrochemical reactions. Here he will discuss using both a platinum pseudo reference electrode and a reversible hydrogen electrode during in situ electrochemical experiments. There are pros and cons to each, watch and learn from his expertise using Protochips Poseidon liquid cell system for in situ TEM. See Dr. Sasaki’s ResearchGate page here: https://www.researchgate.net/profile/Yuki-Sasaki-7 Curious about purchasing your own Poseidon system to do liquid cell research in the TEM? Contact us at sales@protochips.com for more information

FLASH TALKS: EP #12 - Operando Liquid Cell Electron Microscopy of Discharge and Charge Kinetics

#FindYourBreakthrough | FLASH TALKS: EP #12 Operando liquid cell electron microscopy of discharge and charge kinetics in lithium-oxygen batteries Presented by: Dr. Yifei Yuan from Wenzhou University. Read the full publication here: https://www.sciencedirect.com/science/article/abs/pii/S2211285518302775?via%3Dihub

FLASH TALKS: EP #11 - Monitoring of CaCO3 Nanoscale Structuration through Real-Time Liquid Phase

#FindYourBreakthrough | FLASH TALKS: EP #11 Monitoring of CaCO3 Nanoscale Structuration through Real-Time Liquid Phase Transmission Electron Microscopy and Hyperpolarized NMR Presented by: Dr. Vinavadini Ramnarain from IPCMS/University of Strasbourg. Read the full publication here: https://pubs.acs.org/doi/10.1021/jacs.2c05731?ref=pdf

FLASH TALKS: EP #10 - Fabrication of micro-batteries for operando TEM electrochemistry

#FindYourBreakthrough | FLASH TALKS: EP #10 Fabrication of micro-batteries for operando TEM electrochemistry using aerosol-jet printing Presented by: Jędrzej Morzy from the University of Cambridge. Read the full publication here: https://onlinelibrary.wiley.com/doi/full/10.1002/admi.202200530

FLASH TALKS: EP #9 - Studying organic solvated polymeric nanomaterials with LCTEM

In this Flash Talk episode 9 Joanna Korpanty from Northwestern University, Department of Chemistry will tell you something about her recent publication on solvated polymeric nanomaterials in liquid cell electron microscopy. A worm-to-micelle transformation was triggered via organic solvent mixing during the measurements, showing dynamics not possible with cryo-electron microscopy. This work shows great potential in future liquid cell experiments in other solvents then water. Full publication: https://linkinghub.elsevier.com/retrieve/pii/S266638642200039X

FLASH TALKS: EP #8 - Attachment of Iron Oxide Nanoparticles to Carbon Nanofibers Studies by In-Situ

#FindYourBreakthrough | FLASH TALKS: EP #8 Attachment of Iron Oxide Nanoparticles to Carbon Nanofibers Studies by In-Situ Liquid Phase Transmission Electron Microscopy Presented by: Dr. Nynke A. Krans from Utrecht University. Read the full publication here: https://pubmed.ncbi.nlm.nih.gov/30468967/

FLASH TALKS: EP #7 - Catalyst Particle Growth at the Nanoscale In Situ TEM of TiO2 Supported Gold

#FindYourBreakthrough | FLASH TALKS: EP #7 Catalyst Particle Growth at the Nanoscale In Situ TEM of TiO2 Supported Gold Nanoparticle Growth Presented by: Dr. Mark J. Meijerink from Utrecht University. Read the full publication here: https://pubs.acs.org/doi/10.1021/acs.jpcc.9b10237

FLASH TALKS: EP #6 - Dynamic Restructuring of Supported Metal Nanoparticles and its Implications

#FindYourBreakthrough | FLASH TALKS: EP #6 Dynamic Restructuring of Supported Metal Nanoparticles and its Implications for Structure Insensitive Catalysis Presented by: Dr. Charlotte Vogt from Technion – Israel Institute of Technology. Read the full publication here: https://www.nature.com/articles/s41467-021-27474-3

Introducing AXON Dose™

Finally, you can accurately measure, manage and analyze the true impact of the electron beam on your sample, in ways you never thought possible, making your experiments more consistent and repeatable, and maximizing your understanding Visit: http://www.protochips.com

FLASH TALKS: EP #5 - High Temperature Dynamics of Nanocrystalline Graphene

#FindYourBreakthrough | FLASH TALKS: EP #5 High Temperature Dynamics of Nanocrystalline Graphene – A Time Resolved HRTEM Study Presented by: Dr. C.N. Shyam Kumar while at the Institute of Nanotechnology at Karlsruhe Institute of Technology Find the full publication here: https://pubs.rsc.org/en/content/articlehtml/2017/nr/c7nr03276e?casa_token=Kd76o5Cy5poAAAAA:Sxeq8iS-FU6guregHJ-QcXM8umNESoRBrpRv5E4KXgMIeXDf-UOcRHyQ3y7hQcQqmol6Q2QEM_e_

FLASH TALKS: EP #4 - In situ Monitoring of Exopolymer-dependent Mn Mineralization

#FindYourBreakthrough | FLASH TALKS: EP #4 In situ monitoring of exopolymer-dependent Mn mineralization on bacterial surfaces Presented by: Dr. Thaïs Couasnon and Dr. Damien Alloyeau from Université de Paris, CNRS. Read the full paper here: https://advances.sciencemag.org/content/6/27/eaaz3125#BIBL For more product information, visit our website at www.protochips.com or reach out to us at https://www.protochips.com/contact-us/

Studio Spotlight - AXON Studio Pack and Share

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Studying Catalyst Activation at the Nanoscale

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AXON Studio Feature Spotlight - Filtering

Studio Spotlight - Tutorial with David Nackashi

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FLASH TALKS: EP #3 - Iron-silica Interaction During Reduction of Precipitated Silica-promoted

#FindYourBreakthrough | FLASH TALKS: EP #3 Iron-silica Interaction During Reduction of Precipitated Silica-promoted Iron Oxides Using In Situ XRD and TEM Presented by: Dr. Jaco Olivier from Nelson Mandela University. Read the full publication here: https://www.sciencedirect.com/science/article/abs/pii/S0926860X21000454?via%3Dihub

Peering Into Viruses and Vaccines Using High Resolution Imaging

In Situ Liquid Heating: Inducing Nanoparticle Nucleation

Video courtesy Dr. Saso Sturm of the Jozef Stefan Institute. Acquired using the Poseidon Select liquid cell holder with liquid heating capability. More info at www.protochips.com

In Situ Liquid Electrochemistry: Charging a Nanoscale Lithium Ion Battery

Read more about the observation of charging and discharging of lithium batteries via in situ TEM by Mehdi et al. here: https://pubs.acs.org/doi/10.1021/acs.nanolett.5b00175

AXON Studio Collaboration | Studio Spotlight

FLASH TALKS: EP #2 - Using CryoChips to Solve Structures of Low Molecular Weight Proteins

#FindYourBreakthrough | FLASH TALKS: EP #2 Using CryoChips to Solve Structures of Low Molecular Weight Proteins using Cryoelectron Microscopy Presented by: Dr. Mike Casasanta from The Pennsylvania State University. Read more about using MEMS-based chips for CryoEM here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534443/

Successful Reduction Experiments with Atmosphere

The study of iron reduction is extremely challenging. As shown below, the presence of even small amounts of oxygen are sufficient to suppress the wanted reduction. Our Atmosphere system is the only in situ TEM gas cell on the market designed entirely of stainless steel with helium leak-tight metal seals that enable even the reduction of iron oxide to metallic iron. The “match correlation” charts are a more quantitative signal of when dynamics are occurring, and is automatically calculated by our AXON machine vision software platform. As you can see, on the left there are no dynamics detected by the software due to the minute amount of oxygen present. Want to learn more about why our AXON empowered Atmosphere system is the only choice for your catalyst or corrosion research? Download our brochure here: https://www.protochips.com/gate/test-copy-copy/ or reach out to us here: https://www.protochips.com/contact-us/

FLASH TALKS: EP #1 - Reaction Dynamics of Calcium-ion Battery Electrolytes

#FindYourBreakthrough | FLASH TALKS: EP #1 Reaction Dynamics of Calcium-ion Battery Electrolytes Explored by In Situ Electrochemical TEM Presented by: Professor Alexander Robertson from University of Oxford. Read the full paper here: https://pubs.acs.org/doi/10.1021/acsenergylett.0c01153?ref=pdf

Machine Vision Unveils Catalyst Deactivation

With ongoing oxidation, you are seeing the spreading of a porous oxide structure resulting from so called “Kirkendall effect”, which is visualized in the atomic level of resolution during the heating ramp. The integrated metadata to was used to plotting and analyzing trends. Copper catalyst particle analyzed in the Protochips Atmosphere in situ TEM system while utilizing the AXON Machine Vision Software platform for on-the-fly stabilization, real-time data integration, and data analysis and video generation. Read more about Atmosphere and AXON on our website: www.protochips.com’

Studio Experience Fusion Clip #1

Creating the Connected Lab

Desktop software for managing, reviewing, analyzing and publishing TEM images and metadata in your office or workspace. Sifting through and reviewing 10,000+ TEM images to prepare for a high-impact publication or share important findings with your colleagues has never been more intuitive. AXON Studio gives you a new level of control over the data set produced by AXON Synchronicity, removing the inevitable post-processing burdens that come once you complete your TEM experiment, whether in situ or traditional. Quickly review images and metadata side by side and identify hidden trends, prepare easily-downloadable packages for your collaborators, and publish your results in a fraction of the time.

An Introduction to In Situ Electron Beam Induced Current Analysis with TEM

Dr. Rémy Berthier (Protochips) and Dr. Greg Moldovan (point electronic GmbH) will share their knowledge and expertise on in situ TEM electrical characterization and EBIC analysis of devices, and how to combine the two for high-resolution microscopy. As electronic devices keep getting smaller, the increase in spatial and temporal resolution that the TEM provides is becoming critical to key innovation-driving sectors, including failure analysis, device manufacturing, and device research. Publication: https://aip.scitation.org/doi/10.1063/5.0040243

Get Ready! - Protochips

#GETREADY For the latest updates, please visit www.protochips.com

Introduction to Fusion Select Heating amp; Electrical Biasing for In Situ TEM

Fusion Select transforms your TEM into an in-situ laboratory using the flexibility of MEMS-based E-chips that deliver accurate, precise experimental conditions. Capable of sourcing and measuring picoamp level electrical signals and swift temperature changes up to 1200 °C, Fusion Select electrothermal analysis offers unmatched versatility and capability, accelerating results.

AXON – What are you waiting for?

An Introduction to Safe and Efficient Remote TEM Collaboration Using the AXON Software Platform

WEBINAR: Wednesday, September 30th, 2020 In this brief 30 minute webisode, Product Manager Jen McConnell will review the most common hardships related to operating or using a transmission electron microscopy lab during this new era of restrictions and how the AXON software platform can help you overcome many of them. Are you or your lab struggling to manage through travel or capacity restrictions, limited lab internet connectivity, or large data transfers? If you’re a researcher that utilizes TEMs, either at your facility or a collaborator’s, learn how AXON can: Make it easy to participate in TEM sessions remotely, even with users at multiple sites Review all data from the lab as it’s taken in real time Analyze image stacks off-line at your convenience using the AXON Notebook application If you’re a lab manager who’s looking to get more utilization of your instruments, learn how AXON can: Safely allow a point of access between your lab and the internet, without exposing your TEM or camera computer Provide a consolidated dashboard of all experimental parameters for your collaborators to follow along during sessions Easily allow lab personnel to create data packages in sizes that are easier to transfer to your users

AXON Unleashed: Delivering on the Promise of Atomic Scale Dynamics in the TEM (Webinar)

This webinar will show you what happens when we add the AXON system to a well-characterized in-situ heating experiment that we’ve performed hundreds of times. The only variable is AXON and the results demonstrate the impact AXON has on your TEM. We think you’ll be just as impressed as we were, since this is the first time we’ve used AXON to prove its value on actual in-situ research. For more information, please visit www.protochips.com/AXON

Introduction to Electrochemistry and its Integration to In Situ TEM

In this webinar, we will have presentations from both Dr. Madeline Dukes from Protochips and Dr. Dave Loveday from Gamry Instruments who will share their knowledge and expertise in fundamental electrochemical measurements and how they can be used for operando observations at the nanoscale that will accelerate research for fuel cell catalysts, batteries, and corrosion.

Webinar - AXON : Revolutionizing the in Situ TEM Workflow

In this webinar, you will see a demonstration of the AXON workflow – how it fully optimizes both high resolution imaging and in situ experiments on multiple samples. Additionally, we’ll exhibit the capability and advantages of the Synchronicity software module to capture all TEM and in situ data during the experiment, sharing data gathered using multiple holders.
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