Preparation for V6O13@hollow carbon microspheres and their remarkable electrochemical performance for aqueous zinc-ion batteries

被引：36

作者：

Hu, Jun ^{[1
]}

Chen, Han ^{[1
]}

Xiang, Kaixiong ^{[1
]}

Xiao, Li ^{[1
]}

Chen, Wenhao ^{[1
]}

Liao, Haiyang ^{[1
]}

Chen, Hong ^{[2
]}

机构：

[1] Hunan Univ Technol, Sch Met & Mat Engn, Zhuzhou 412007, Hunan, Peoples R China

[2] Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Guangdong, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 856卷

关键词：

Hollow carbon microspheres; Composite materials; Zinc-ion battery; V6O13; Electrochemical properties;

D O I：

10.1016/j.jallcom.2020.157085

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

V6O13@hollow carbon microspheres (HCMs) have been successfully synthesized via high-temperature magnetic stirring and sintering method. V6O13@HCMs were characterized by X-ray diffraction, FESEM, TEM, XPS, TGA and Brunauer-Emmett-Teller. V6O13 is uniformly coated on the surface of the hollow carbon microspheres. V6O13@HCMs-2 delivers a high discharge capacity of 442.3 mA h g(-1) at 0.1 A g(-1) in the potential of 0.2-1.8 V, good capacity retention of 76% after 1000 cycles at a high current density of 1 A g(-1), and excellent rate capacity of 235.6 mA h g(-1) at 1 A g(-1). This good electrochemical performance can be attributed to the hollow and core-shell structure for V6O13@HCMs. (C) 2020 Published by Elsevier B.V.

引用

页数：5

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