Converting commercial Bi2O3 particles into Bi2O2Se@Bi4O8Se nanosheets for "rocking chair" zinc-ion batteries

Haonan Yue; Mengwei Han; Xinni Li; Ting Song; Yong Pei; Xianyou Wang; Xiongwei Wu; Tengfei Duan; Bei Long

doi:10.1016/j.jcis.2023.08.034

Converting commercial Bi₂O₃ particles into Bi₂O₂Se@Bi₄O₈Se nanosheets for "rocking chair" zinc-ion batteries

J Colloid Interface Sci. 2023 Dec:651:558-566. doi: 10.1016/j.jcis.2023.08.034. Epub 2023 Aug 6.

Authors

Haonan Yue¹, Mengwei Han¹, Xinni Li¹, Ting Song¹, Yong Pei¹, Xianyou Wang¹, Xiongwei Wu², Tengfei Duan³, Bei Long⁴

Affiliations

¹ School of Chemistry, Xiangtan University, Xiangtan 411105, China.
² School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China.
³ School of Chemistry, Xiangtan University, Xiangtan 411105, China. Electronic address: duantengfei0809@163.com.
⁴ School of Chemistry, Xiangtan University, Xiangtan 411105, China. Electronic address: longbei@xtu.edu.cn.

PMID: 37562298
DOI: 10.1016/j.jcis.2023.08.034

Abstract

The development of a low-cost, high-capacity, and insertion-type anode is key for promoting "rocking chair" zinc-ion batteries. Herein, commercial Bi₂O₃ (BiO) particles are transformed into Bi₂O₂Se@Bi₄O₈Se (BiOSe) nanosheets through a simple selenylation process. The change in morphology from commercial BiO particle to BiOSe nanosheet leads to an increased specific surface area of the material. The enhanced electronic/ionic conductivity results in its excellent electrochemical kinetics. Ex situ XRD and XPS tests prove the intercalation-type mechanism of BiO and BiOSe as well as the superior electrochemical reversibility of BiOSe compared to BiO. Furthermore, the H⁺/Zn²⁺ co-insertion mechanism of BiOSe is revealed. This makes BiOSe to have low discharge plateaus of 0.38/0.68 V, a high reversible capacity of 182 mA h g^-1 at 0.1 A g^-1, and a long cyclic life of 500 cycles at 1 A g^-1. Besides, the BiOSe//MnO₂ "rocking chair" zinc-ion battery offers a high capacity of ≈90 mA h g^-1 at 0.2 A g^-1. This work provides a reference for turning commercial material into high-performance anode for "rocking chair" zinc-ion batteries.

Keywords: Bi(2)O(2)Se@Bi(4)O(8)Se nanosheets; Commercial Bi(2)O(3) particles; Long-life anode; Selenylation; “Rocking chair” zinc-ion batteries.