Electrocatalysis plays a central role in diverse energy technologies that are of increasing importance for applications in mobile electronics, electric vehicles, as well as renewable energy industry. This presentation will cover our research centred around understanding fine structure and composition differences among nanoscale Pt-alloy catalysts and the effect of such nuanced differences on their catalytic performance in oxygen reduction reaction (ORR). Combining theoretical modelling and experimental observations, we further developed a binary experimental descriptor (BED), to accurately reflect calculated oxygen binding energy deltaEo on the Pt-alloy catalyst surface. The talk will also cover the microenvironment at the electrode-electrolyte interfaces and their contributions to the overall catalytic performance.

Sabatier plot and beyond: The case of catalyst design for oxygen reduction reaction

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ACS Spring 2023

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