Formation of Core-Shell Ir@TiO2 Nanoparticles through Hydrogen Treatment as Acidic Oxygen Evolution Reaction Catalysts

Atmosphere AX Publication Alert in Adv. Func. Mater. for Heterogeneous Catalysis

Tuesday publication post! In this newest publication of #McMasterUniversity in Canada, Jihyeon Park, Eric Liu, Shayan Angizi, Ahmed Abdellah, Ecem Yelekli Kirici and Drew Higgins have looked at the formation of core-shell Ir@TiO2 nanoparticles as oxygen evolution catalysts using the #AtmosphereAX!

At 500 °C, Ir segregates from a mixed metal oxide to form the stable core-shell Ir@TiO2 structure.
⚡ Delivered 1,880 A gIr⁻¹ at 1.7 V (RHE), this new structure shows a significant improvement over commercial IrOx (624 A gIr⁻¹).
This innovative structure lowers Ir requirements without sacrificing performance, addressing both cost and sustainability challenges.

This study provides a comprehensive understanding of the core-shell formation mechanism under annealing conditions and demonstrates the potential of Core-shell Ir@TiO2 catalysts to balance activity, stability, and material efficiency.

Want to read the entire paper?
Find it here!
https://www.doi.org/10.1002/adfm.202408848

2024-12_14 Atmosphere

 

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