Free‐standing BiOI@MWCNTs photoelectrodes for photo‐rechargeable zinc‐ion batteries

作     者：Bei Long Xiaojie Liang Yong Pei Xiongwei Wu Xianyou Wang Man-Kay Law Bei Long;Xiaojie Liang;Yong Pei;Xiongwei Wu;Xianyou Wang;Man-Kay Law

作者机构：State Key Laboratory of Analog and Mixed-Signal VLSIUniversity of MacaoMacao 999078China School of ChemistryXiangtan UniversityXiangtan 411105China School of Chemistry and Materials ScienceHunan Agricultural UniversityChangsha 410128China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术(英文版))

年 卷 期：2024年第198卷第31期

页      面：137-142页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：supported by the Macao Young Scholars Program(AM2021011) the Macao Science and Technology Development Fund(0011/2019/APJ) the Research Committee of University of Macao(CPG2023-00005-IME) the Natural Science Foundation of China(52102312) 

主　　题：Free-standing BiOI@MWCNTs film Photoactive electrode Photoaccelerated chemical-electric energy conversion Long cyclic life Photo-rechargeable zinc ion battery 

摘      要：Photo-rechargeable batteries can implement solar energy harvesting and storage simultaneously and have attracted strong interest from *** development of photoactive electrodes is the key to promoting the development of high-performance ***,a free-standing BiOI@MWCNTs film is developed as photoelectrode to achieve the effective separation of photogenerated electron-hole pairs for high-efficiency solar-electric-chemical energy *** can charge up photocells with a photoconversion efficiency of∼1.3%,as well as accelerate charge transfer without requiring any external bias *** situ XRD and XPS tests prove that the enhanced electrochemical reaction kinetics can improve the chemical-electric energy conversion efficiency under *** capacity of the proposed photocell can be increased by 10.6%(from 195 mA h g^(-1)to 216 mA h g^(-1)at 0.2 A g^(-1))and 57.9%(from 76 mA h g^(-1)to 120 mA h g^(-1)at 5.0 A g^(-1))in light condition,while exhibiting a cyclic life of up to 600 *** work can help to deepen the understanding of photo-rechargeable batteries.