A multi-layer reduced graphene oxide catalyst encapsulating a high-entropy alloy for rechargeable zinc-air batteries

Leyi Gao; Xiongwei Zhong; Zhitong Li; Junjie Hu; Shuyu Cui; Xingzhu Wang; Baomin Xu

doi:10.1039/d3cc05069f

A multi-layer reduced graphene oxide catalyst encapsulating a high-entropy alloy for rechargeable zinc-air batteries

Chem Commun (Camb). 2024 Jan 30;60(10):1269-1272. doi: 10.1039/d3cc05069f.

Authors

Leyi Gao¹, Xiongwei Zhong¹, Zhitong Li¹, Junjie Hu¹, Shuyu Cui¹, Xingzhu Wang¹, Baomin Xu¹

Affiliation

¹ Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China. xubm@sustech.edu.cn.

PMID: 38194251
DOI: 10.1039/d3cc05069f

Abstract

A reduced graphene oxide encapsulating Fe₆Ni₂₀Co₂Mn₂Cu_1.5@rGO catalyst is prepared using a Joule heating strategy. The graphene-coated layer with high crystallinity enhances the stability of the crystal structure, resulting in superior OER activity. Rechargeable zinc-air batteries with Fe₆Ni₂₀Co₂Mn₂Cu_1.5@rGO demonstrate remarkable performance, boasting a high specific capacity of 800 mA h g_Zn^-1, an impressive peak power density of 154.612 mW cm^-2, and a cycle life of 300 hours at a current density of 10 mA cm^-2.