Another milestone worth celebrating this year: our 250th Heterogeneous Catalysis publication! 📖🔥
In this new publication, researchers used the #AtmosphereAX in situ gas cell system to investigate the oxidation behavior of aluminum nanoparticles from 25 to 1000 °C using in situ transmission electron microscopy, providing new quantitative insights into high-temperature oxidation kinetics.
Understanding how catalytic and reactive materials evolve under realistic gas environments and elevated temperatures is essential for advancing heterogeneous catalysis, energy materials, and industrial processes. This work demonstrates the power of in situ TEM to directly observe structural transformations while quantifying reaction kinetics.
Key findings:
🔥 Identified three distinct stages of aluminum nanoparticle oxidation from room temperature to 1000 °C, revealing how reaction mechanisms evolve with temperature.
🔬 Combined in situ reactive cell TEM with TGA-DSC measurements to correlate nanoscale structural evolution with bulk thermal behavior.
📊 Quantified reaction fluxes and diffusivities directly from time-resolved imaging, showing that measured diffusivity strongly depends on heating rate—helping explain discrepancies reported throughout the literature.
Whether studying catalysis reactions, synthesis or deactivation in liquids, gases, or under bias/heat in vacuum, our Poseidon AX, Fusion AX, and Atmosphere AX systems continue to enable groundbreaking in situ research.
Find the whole paper here:
https://www.doi.org/10.1021/acs.jpcc.5c06533
Read more about our in situ systems for heterogeneous catalysis here:
