阳极
材料科学
硒化物
离子
化学工程
微观结构
碳纤维
电极
纳米技术
复合材料
化学
复合数
冶金
物理化学
有机化学
硒
工程类
作者
Panyue Zhou,Liping Wang,Mingyu Zhang,Feixiang Wu,Qizhong Huang,Zhean Su,Ping Xu,Mingdong Liao,Yingyao Hu,Xuemei Lin
出处
期刊:ACS applied energy materials
[American Chemical Society]
日期:2023-06-21
卷期号:6 (13): 7129-7137
被引量:2
标识
DOI:10.1021/acsaem.3c00789
摘要
High rates and durable anodes are the eternal pursuits of sodium ion batteries (SIBs). Constructing bimetal selenide is an efficient strategy to improve Na+ storage. Herein, a hierarchical hollow CoNiSe2/carbon compound (CoNiSe2/C) was designed as an anode of SIBs via selenizing the modified MOFs precursor. During the high-rate test, CoNiSe2/C electrodes exhibited an outstanding specific capacity of 301.9 mA h g–1 even at 20 A g–1, while an impressive cycle life over 2000 at 5 A g–1 was achieved with a residual capacity of 368.9 mA h g–1. The high-rate capability is attributed to the significantly reduced energy barrier of reaction activation and the strong microstructure of the hierarchical hollow CoNiSe2/C. It indicates that the CoNiSe2/C synthesized in this work is highly desirable and promising as a SIB anode material and sheds light on the design and development of anode materials.
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