Electrocatalysts enhance hydrogen production rates in alkaline media, suggesting new approaches for sustainable energy.
Key Points
This work aims to improve the understanding of the mechanisms behind hydrogen evolution and oxidation reactions in alkaline environments using bimetallic catalysts.
Utilized electrochemical analyses, including cyclic voltammetry (CV), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS).
Applied density functional theory to analyze bimetallic alloy trends.
Investigated the co-adsorption of hydrogen and hydroxide as a mechanism for enhancing reactions.
Demonstrated that balancing hydrogen and hydroxide affinities is critical for improving electrocatalytic activity.
Established a dual-descriptor framework for catalyst selection, moving beyond single descriptors.
Highlighted PtRu and PtIr alloys as optimal for achieving the desired binding balance.