Communications

One-step synthesis of composite electrocatalyst of oxygen reduction reaction by electrochemical dispersion of PtCu alloy

A. V. Pugacheva, R. A. Manzhos, N. S. Komarova, A. S. Kotkin, Ya. I. Korepanov, M. V. Zhidkov, E. N. Kabachkov, D. V. Korchagin, A. G. Krivenko

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation

Abstract: Electrochemical dispersion of Pt₇₀Cu₃₀ alloy implemented by applying repeated 100 V/–10 V voltage pulses is proposed as a one-step method to produce a composite electrocatalyst of the oxygen reduction reaction (ORR). A comparative study of the catalytic activity towards ORR of the obtained composites based on few-layer graphene structures decorated with PtCu nanoalloy and pure Pt nanoparticles was carried out. The prospects of using the electrochemical sputtering of PtCu alloy for the one-step production of effective electrocatalysts were substantiated.

Keywords: electrochemical dispersion of metals, electrolytic plasma, PtCu alloy, few-layer graphene structures, oxygen reduction reaction.

Received: 21.07.2025
Accepted: 07.10.2025

Language: English

DOI: 10.71267/mencom.7879