What question did this study set out to answer?

To evaluate the performance of a novel Pt-free Ru-Ni4N catalyst for hydrogen oxidation in alkaline conditions.

April 23, 2026Open Access

Ni 4 N Interspersed Ru for Enhanced Hydrogen Oxidation Reaction in Alkaline Medium

AVAnagha Usha VijayakumarBar-Ilan University MSManoj Shanmugasundaram VVVineesh Thazhe VeetilBar-Ilan University

Key Points

To evaluate the performance of a novel Pt-free Ru-Ni4N catalyst for hydrogen oxidation in alkaline conditions.
Preparation of Ru-Ni4N/C catalyst through selective nitridation during alloy annealing in NH3.
Comparison of catalytic performance against Pt/C, RuNi alloy, and Ru/C.
Assessment of reaction efficiency in an alkaline medium.
Ru-Ni4N/C catalyst outperforms Pt/C and other tested materials.
Significant enhancement in hydrogen oxidation reaction rates observed.
Implication of effective catalyst design for electrochemical applications.

Abstract

We report a novel Pt-free Ru-Ni 4 N/C heterostructured catalyst, prepared by selective Ni nitridation during RuNi alloy annealing in NH3. It outperforms Pt/C, RuNi alloy and Ru/C in alkaline hydrogen oxidation...

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