Oxygen-Defect Enhanced Anion Adsorption Energy Toward Super-Rate and Durable Cathode for Ni–Zn Batteries

Nano-Micro Letters

Chi Chen¹  Zhaohan Zheng²  Jun Zhang²  Jia Yao²  Guokun Ma²  Li Tao²  Jinxia Duan²  Xunying Wang²  Hanbin Wang²  Houzhao Wan²  Hao Wang²  Jie Ji²  Nengze Wang² 

[1] CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, People’s Republic of China;Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, 361021, Xiamen, People’s Republic of China;Hubei Key Laboratory of Ferro and Piezoelectric Materials and Devices, School of Microelectronics and Faculty of Physics and Electronic Science, Hubei University, 430062, Wuhan, People’s Republic of China;

关键词: Ni–Zn battery;    Oxygen defect;    Nanotube array;    CoNiO nanosheet;    Adsorption energy;   

DOI  :  10.1007/s40820-021-00699-z

来源: Springer

【 摘 要 】

tsUltra-thin CoNiO2 nanosheet with rich oxygen defects anchored on the vertically arranged Ni nanotube arrays (Od-CNO@Ni NTs) is successfully constructed.The Od-CNO@Ni NTs electrode delivers extraordinary electrochemical performance.The theoretical calculations reveal that oxygen defects effectively improve the electrochemical kinetics and the surface electronic state structure of Od-CNO @ Ni NTs, thus exhibiting strong OH − adsorption capacity.

【 授权许可】

CC BY