Enhanced redox cycling of FeyO by Cr-doping over oxygen electrode for rechargeable zinc–air batteries

Jiao Peng; Shan Ji; Wenlong Yang; Hui Wang; Xuyun Wang; Vladimir Linkov; Rongfang Wang; Xianguo Ma

doi:10.1039/D5CC01293G

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Enhanced redox cycling of Fe_yO by Cr-doping over oxygen electrode for rechargeable zinc–air batteries†

Jiao Peng,^a Shan Ji,*^b Wenlong Yang,

*^c Hui Wang,

^d Xuyun Wang,^d Vladimir Linkov,^e Rongfang Wang^d and Xianguo Ma*^a

Author affiliations

* Corresponding authors

^a School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, China
E-mail: maxianguo@git.edu.cn

^b College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
E-mail: jishan@zjxu.edu.cn

^c College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
E-mail: wlyang@qust.edu.cn

^d College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
E-mail: rfwang@qust.edu.cn

^e South African Institute for Advanced Materials Chemistry, University of the Western Cape, Cape Town, South Africa

Abstract

The carbon-based bimetallic oxide catalyst (Cr_xO–Fe_yO/NC) synthesized by calcination method achieves excellent oxygen electrocatalytic activity through the electronic effect of the Cr–Fe interface, with an ORR half-wave potential of 0.89 V and a low overpotential of 351 mV at 50 mA cm⁻² under OER.

This article is part of the themed collection: Chemistry at the Forefront of the Sustainable Energy Transition

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Article information

DOI: https://doi.org/10.1039/D5CC01293G
Article type: Communication
Submitted: 10 Mar 2025
Accepted: 30 Apr 2025
First published: 09 May 2025

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Chem. Commun., 2025, Advance Article

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Enhanced redox cycling of Fe_yO by Cr-doping over oxygen electrode for rechargeable zinc–air batteries

J. Peng, S. Ji, W. Yang, H. Wang, X. Wang, V. Linkov, R. Wang and X. Ma, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC01293G

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