VO2·0.26H2O nanobelts@reduced graphene oxides as cathode materials for high-performance aqueous zinc ion batteries

Ling Xie; Wenhai Xiao; Xiaoyan Shi; Junzhi Hong; Junjie Cai; Kaili Zhang; Lianyi Shao; Zhipeng Sun

doi:10.1039/d2cc04431e

VO₂·0.26H₂O nanobelts@reduced graphene oxides as cathode materials for high-performance aqueous zinc ion batteries

Chem Commun (Camb). 2022 Dec 13;58(99):13807-13810. doi: 10.1039/d2cc04431e.

Authors

Ling Xie¹, Wenhai Xiao¹, Xiaoyan Shi¹, Junzhi Hong¹, Junjie Cai¹, Kaili Zhang², Lianyi Shao¹, Zhipeng Sun¹

Affiliations

¹ School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, Guangdong, China. shaolianyi@gdut.edu.cn.
² Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, China.

PMID: 36444768
DOI: 10.1039/d2cc04431e

Abstract

A simple microwave-assisted hydrothermal approach is adopted to synthesize VO₂·0.26H₂O nanobelts@reduced graphene oxide (VO₂·0.26H₂O@rGO), which is regarded as a promising cathode material for ZIBs. Compared to VO₂·0.26H₂O, VO₂·0.26H₂O@rGO has a large specific surface area and low charge transfer resistance, improving its electrochemical properties. The large lattice spacing, high capacitive Zn²⁺ storage behavior, fast Zn²⁺ transfer rate and stable structure are also responsible for the performance.