期刊
CHINESE CHEMICAL LETTERS
卷 32, 期 11, 页码 3553-3557出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2021.02.034
关键词
Nickel cobalt phospho-sulfide; Electrodeposition; Specific capacitance; Asymmetric supercapacitors; Energy density
资金
- National Natural Science Foundation of China [52073137, 21704038, 51763018]
- NSFC-DFG Joint Research Project [51761135114]
- Natural Science Foundation of Jiangxi Province [20192BCB23001, 20202ZDB01009]
A facile one-step electrodeposition approach was developed to synthesize Ni-Co-P-S nanosheets with excellent electrochemical performance. The electrode materials exhibited high specific capacitance, impressive cycling stability, and are suitable for various sustainable electrochemical energy storage/conversion technologies.
Although transition metal phospho-sulfides deliver outstanding electrochemical performance, complex preparation methods hindered their further development. Herein, we report a facile one-step electrodeposition approach to deposit interconnected nanowalls-like nickel cobalt phospho-sulfide (Ni-Co-P-S) nanosheets onto the surface of carbon cloth. The thin Ni-Co-P-S nanosheets with multi-components and synergetic effects delivered rich active sites, further enhancing reversible capacitance. Therefore, the as-prepared Ni-Co-P-S electrode materials exhibit excellent electrochemical performance in a three-electrode system, showcasing a high specific capacitance of 2744 F/g at 4 A/g. The full supercapacitors based on Ni-Co-P-S as positive electrode and active carbon as negative electrode showcase a high specific capacitance of 110.9 F/g at 1 A/g, impressive energy density of 39.4 Wh/kg at a power density of 797.5 W/kg in terms of excellent cycling stability (91.87% retention after 10,000 cycles). This simple electrode position strategy for synthesizing Ni-Co-P-S can be extended to prepare electrode materials for various sustainable electrochemical energy storage/conversion technologies. (C) 2021 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据