Ingeniously designing anode material of Ni3S2/MnS2@Carbon nanocomposite with a wide potential window of 1.3 V

doi:10.1016/j.electacta.2020.137386

	Ingeniously designing anode material of Ni3S2/MnS2@Carbon nanocomposite with a wide potential window of 1.3 V
	Shang, Wen; Ran, Fen
刊名	Electrochimica Acta
	2021
卷号	365
关键词	Ammonium persulfate Aniline Anodes Capacitance Carbon Carbonization Cathodes Composite materials Composite structures Electrolytes Nanocomposites Porosity Potassium hydroxide SupercapacitorAsymmetric supercapacitor Capacitance retention Carbon nanocomposite Electrochemical performance High specific capacitances Nanostructured composites Negative materials Specific capacitance
ISSN号	00134686
DOI	10.1016/j.electacta.2020.137386
英文摘要	Nano-structured composite materials of Ni3S2/MnS2 at carbon are synthesized by a one-step carbonization and vulcanization. The morphology of the composites is controlled by adjusting the ratio of aniline and ammonium persulfate (both as an initiator and a sulfur source). The nanocomposite material has a porous structure stacked by sheets, which can expose more active sites; in the meantime, the porous structure is conducive to the rapid transfer of electrolyte ions. Furthermore, the synthesized nanocomposite material can be used as anode materials for supercapacitor, which has a wide potential window from -1.1 to 0.2 V and shows high specific capacitance of 291 F g−1 at 0.5 A g−1 in 6 M KOH. The asymmetric supercapacitors further assembled with Ni(OH)2 as cathode materials has a specific capacitance of 67 F g−1 at 0.5 A g−1 and good cyclic stability (capacitance retention of 74.5% over 2000 cycles). The electrochemical properties of asymmetric supercapacitors deliver a maximum energy density of 18.8 Wh kg−1 at power density of 360.8 W kg−1. It indicates that this kind of nanocomposite material is a very promising negative material for supercapacitors with excellent electrochemical performance. © 2020 Elsevier Ltd
WOS研究方向	Electrochemistry
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000593774600010
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132348]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Shang, Wen,Ran, Fen. Ingeniously designing anode material of Ni3S2/MnS2@Carbon nanocomposite with a wide potential window of 1.3 V[J]. Electrochimica Acta,2021,365.
APA	Shang, Wen,&Ran, Fen.(2021).Ingeniously designing anode material of Ni3S2/MnS2@Carbon nanocomposite with a wide potential window of 1.3 V.Electrochimica Acta,365.
MLA	Shang, Wen,et al."Ingeniously designing anode material of Ni3S2/MnS2@Carbon nanocomposite with a wide potential window of 1.3 V".Electrochimica Acta 365(2021).