Direct Detection and Visualization of the H+ Reaction Process in a VO2 Cathode for Aqueous Zinc-Ion Batteries
作者:Zuo, SY (Zuo, Shiyong)[ 1 ] ; Liu, J (Liu, Jun)[ 1 ] ; He, WX (He, Weixin)[ 1 ] ; Osman, S (Osman, Sahar)[ 1 ] ; Liu, ZB (Liu, Zhengbo)[ 1 ] ; Xu, XJ (Xu, Xijun)[ 1 ] ; Shen, JD (Shen, Jiadong)[ 1 ] ; Jiang, W (Jiang, Wei)[ 1 ] ; Liu, JW (Liu, Jiangwen)[ 1 ] ; Zeng, ZY (Zeng, Zhiyuan)[ 2 ] ...更多内容
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JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷: 12 期: 30 页: 7076-7084
DOI: 10.1021/acs.jpclett.1c01776
出版年: AUG 5 2021
文献类型:Article
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摘要
Because they are safer and less costly than state-of-the-art Li-ion batteries, aqueous zinc-ion batteries (AZIBs) have been attracting more attention in stationary energy storage and industrial energy storage. However, the electrochemical reaction of H+ in all of the cathode materials of AZIBs has been puzzling until now. Herein, highly oriented VO2 monocrystals grown on a Ti current collector (VO2-Ti) were rationally designed as the research model, and such a well-aligned VO2 cathode also displayed excellent zinc-ion storage capability (e.g., a reversible capacity of 148.4 mAh/g at a current density of 2 A/g). To visualize the H+ reaction process, we used time-of-flight secondary-ion mass spectrometry. With the benefit of such a binder-free and conductor-free electrode design, a clear and intuitive reaction of H+ in a VO2 cathode is obtained, which is quite significant for unraveling the accurate reaction mechanism of VO2 in AZIBs.
关键词
KeyWords Plus:PERFORMANCE; COMPOSITE; V2O5; XPS
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China.
通讯作者地址: Liu, J; Zhu, M (通讯作者)
显示更多 South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China.
地址:
显示更多 [ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China
显示更多 [ 2 ] City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Hong Kong 999077, Peoples R China
电子邮件地址:msjliu@scu.edu.cn; memzhu@scut.edu.cn
基金资助致谢
基金资助机构显示详情 授权号
National Natural Science Foundation of China (NSFC)
51771076
51901080
Guangdong Pearl River Talents Plan
2017GC010218
R&D Program in Key Areas of Guangdong Province
2020B0101030005
Guangdong Basic and Applied Basic Research Foundation
2019A1515010039
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出版商
AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry; Science & Technology - Other Topics; Materials Science; Physics
Web of Science 类别:Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical