Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors

doi:10.1039/c5ra26157k

	Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors
	Dai, Yan-Hua 1; Kong, Ling-Bin 1,2; Yan, Kun 1; Shi, Ming 1; Zhang, Tong 1; Luo, Yong-Chun 2; Kang, Long 2
刊名	RSC ADVANCES
	2016
卷号	6 期号:9 页码:7633-7642
关键词	Cobalt compounds Crystallinity Current density Electrodes Electrolytes Layered semiconductors Molybdenum compounds Nanoparticles Potassium hydroxide Precipitation (chemical) Redox reactions Sulfur compounds Supercapacitor Synthesis (chemical) Transition metals
ISSN号	2046-2069
DOI	10.1039/c5ra26157k
英文摘要	Transition metal sulfides possess multiple oxidation states that enable rich redox reactions for pseudocapacitance, which have been investigated as promising electrode materials for high-performance supercapacitors. The CoMoS4 nanoparticles are successfully synthesized via a facile chemical co-precipitation process followed by calcining at 200 degrees C. The as-prepared CoMoS4 is firstly studied systematically as an electrode material for supercapacitors. Benefiting from the improved electron conductivity, low crystallinity, and effective porous structure, the as-fabricated CoMoS4 exhibits a high specific capacitance of 415 F g(-1) at a current density of 0.5 A g(-1), a superior rate capability of 82.1% retention as the current density increased from 0.5 A g(-1) to 5 A g(-1), and an excellent cycling stability of 100% retention after 10 000 cycles at a current density of 2 A g(-1) in 6 M KOH aqueous electrolyte. Interestingly, the as-prepared CoMoS4 achieves much more outstanding capacitive properties than those of CoS and MoS2, which indicates a synergistic effect of the double metal sulfides on improvement of the electrochemical performance. The findings demonstrate the importance and great potential of CoMoS4 nanoparticles in the development of high-performance energy-storage systems.
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000369515500092
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33830]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Kong, Ling-Bin
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	Dai, Yan-Hua,Kong, Ling-Bin,Yan, Kun,et al. Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors[J]. RSC ADVANCES,2016,6(9):7633-7642.
APA	Dai, Yan-Hua.,Kong, Ling-Bin.,Yan, Kun.,Shi, Ming.,Zhang, Tong.,...&Kang, Long.(2016).Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors.RSC ADVANCES,6(9),7633-7642.
MLA	Dai, Yan-Hua,et al."Simple synthesis of a CoMoS4 based nanostructure and its application for high-performance supercapacitors".RSC ADVANCES 6.9(2016):7633-7642.