Amorphous Cobalt Boride Alloy Synthesized by Liquid Phase Methods as Electrode Materials for Electrochemical Capacitors

doi:10.1002/ppsc.202100020

	Amorphous Cobalt Boride Alloy Synthesized by Liquid Phase Methods as Electrode Materials for Electrochemical Capacitors
	Gao, Jian-Fei 1,2; Hou, Jing-Feng 1,2; Kong, Ling-Bin 1,2
刊名	PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
	2021
卷号	38 期号:5
关键词	amorphous materials asymmetric supercapacitors energy storages transition metal borides
ISSN号	0934-0866
DOI	10.1002/ppsc.202100020
英文摘要	An amorphous cobalt boride alloy with high electronic conductivity is fabricated through the liquid-phase reduction method. Benefiting from large specific surface area and hierarchical pore structure, the as-synthesized Co-B nanoflakes expose substantial electrochemical active sites, promote the transfer of electrons and ions, and accelerate the redox kinetic process. The as-obtained amorphous Co-B alloy sample displays a specific capacitance of 411 F g(-1) at 0.5 A g(-1), and with the current density increased to 10 A g(-1), it maintains 69% of the initial capacitance. The as-assembled asymmetric supercapacitor device reveals electrochemical properties comprising an excellent specific capacitance of 64.3 F g(-1) at 0.25 A g(-1), superior cyclical stability of 105% after 20,000 cycles at 3 A g(-1), and maximum energy density of 22.9 Wh kg(-1) at a power density of 200.3 W kg(-1). This study demonstrates great potential in developing high-conductivity materials for an asymmetric supercapacitor through utilizing an amorphous cobalt boride alloy as a promising electrode material.
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000640247800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148257]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Gao, Jian-Fei,Hou, Jing-Feng,Kong, Ling-Bin. Amorphous Cobalt Boride Alloy Synthesized by Liquid Phase Methods as Electrode Materials for Electrochemical Capacitors[J]. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION,2021,38(5).
APA	Gao, Jian-Fei,Hou, Jing-Feng,&Kong, Ling-Bin.(2021).Amorphous Cobalt Boride Alloy Synthesized by Liquid Phase Methods as Electrode Materials for Electrochemical Capacitors.PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION,38(5).
MLA	Gao, Jian-Fei,et al."Amorphous Cobalt Boride Alloy Synthesized by Liquid Phase Methods as Electrode Materials for Electrochemical Capacitors".PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION 38.5(2021).