The rapid development of novel renewable energy storage systems promotes the evolution of sodium ion batteries. Among various anode materials, the conversion-type material with high sodium storage capacity suffers from large irreversible volume change during chargedischarge, which eventually results in inferior cycling performance. Herein, heterostructure hollow ZIF-67-C/layered double oxides (LDO) nanoparticles as an anode material are constructed to realize high sodium storage performance. The hollow ZIF-67-C/LDO anode with high electrical conductivity and specific surface area endows electrodes with fast electron/ion transport and reduced voltage hysteresis. As a consequence, the ZIF-67-C/LDO with calcination under 350 degrees C possesses a high sodium storage capacity of 341 mAh g(1) at 0.1 A g(1) and superior rate performance with a capacity of around 200 mAh g(1) at 2 A g(1). The hollow core/shell structure can not only improve the specific surface area but also alleviate the stress during the electrochemical reactions, leading to enhanced capacity and improved structural stability of the electrode material. (C) 2021 Elsevier B.V. All rights reserved.
基金：
National Natural Science Foundation
of China (21521005), the Fundamental Research Funds for
the Central Universities (BHYC1702B, XK1802-6) and the Beijing
Municipal Science & Technology Commission
(Z191100002019013).
第一作者机构：[1]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
通讯作者：
推荐引用方式(GB/T 7714)：
Zhang Shuoxiao,Zhao Yajun,Yin Qing,et al.Hollow ZIF-67-C/LDO core/shell heterostructure as a high-performance anode material for sodium ion batteries[J].MATERIALS LETTERS.2021,294:doi:10.1016/j.matlet.2021.129817.
APA：
Zhang, Shuoxiao,Zhao, Yajun,Yin, Qing,Zhang, Jian,Wang, Kai-Jie&Han, Jingbin.(2021).Hollow ZIF-67-C/LDO core/shell heterostructure as a high-performance anode material for sodium ion batteries.MATERIALS LETTERS,294,
MLA：
Zhang, Shuoxiao,et al."Hollow ZIF-67-C/LDO core/shell heterostructure as a high-performance anode material for sodium ion batteries".MATERIALS LETTERS 294.(2021)
