From the journal:

Chemical Communications

Ni4N interspersed Ru for enhanced hydrogen oxidation reaction in alkaline media

Anagha Usha Vijayakumar,†a   Manoj Shanmugasundaram,†a   Vineesh Thazhe Veettila  and  David Zitoun ORCID logo *a  

* Corresponding authors

a Department of Chemistry, Bar-Ilan Institute of Nanotechnology and Advanced Materials (BINA), Israel National Institute for Energy Storage (INIES), Bar-Ilan University, Ramat Gan, Israel
E-mail: david.zitoun@biu.ac.il

Abstract

We report a Ru–Ni4N/C heterostructured catalyst, prepared by selective Ni nitridation during RuNi alloy annealing in NH3. It outperforms Pt/C, RuNi alloy and Ru/C in the alkaline hydrogen oxidation reaction (HOR), with a specific activity of 0.4 mA cm−2 at 0.1 V vs. RHE, twice that of Ru/C, due to optimized H binding energy and enhanced water adsorption via Ni alloying and heterostructure formation.

Graphical abstract: Ni4N interspersed Ru for enhanced hydrogen oxidation reaction in alkaline media

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Article information

DOI
https://doi.org/10.1039/D6CC01926A
Article type
Communication
Submitted
30 Mar 2026
Accepted
21 Apr 2026
First published
21 Apr 2026
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2026, Advance Article

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Ni4N interspersed Ru for enhanced hydrogen oxidation reaction in alkaline media

A. U. Vijayakumar, M. Shanmugasundaram, V. T. Veettil and D. Zitoun, Chem. Commun., 2026, Advance Article , DOI: 10.1039/D6CC01926A

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