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February 19, 2026ChemElectroChemOpen Access

Platinum‐Based Bimetallic Electrocatalyst for Hydrogen Evolution and Oxidation Reactions in Alkaline Media

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Authors

MHMohammed Amine HammoualiMVMilla VikbergLMLilian Moumaneix

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Overview

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.

Cite This Study

Hammouali et al. (2026) studied this question.

synapsesocial.com/papers/6996a818ecb39a600b3ee723https://doi.org/10.1002/celc.202500383
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