Facile solid−phase synthesis of layered NiS/rGO nanocomposite for high−performance hybrid supercapacitor

doi:10.1016/j.jpowsour.2021.230590

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Facile solid−phase synthesis of layered NiS/rGO nanocomposite for high−performance hybrid supercapacitor
	Zhang, Deyi 1,2; Gao, Shiyao 1,2; Zhang, Jiwei 1,2; Wang, Jingruo 1,2; She, Wenna 1,2; Wang, Kunjie 1,2; Xia, Xu 2; Yang, Biao 2; Meng, Xianxin 2
刊名	Journal of Power Sources
	2021-12-01
卷号	514
关键词	Nickel sulfates Porous materials Sulfur compounds Supercapacitor Transition metals Hybrid supercapacitors Layered NiS/rGO nanocomposite Layered Structures Liquid-phase synthesis Performance Solid phase synthesis Synthesis method Synthesis route Thermal Transition metal sulfides
ISSN号	03787753
DOI	10.1016/j.jpowsour.2021.230590
英文摘要	Generally, transition metal sulfides and their composites are prepared by tedious and uneconomical liquid−phase synthesis methods. In this work, we developed a facile solid−phase synthesis route for preparing NiS/rGO nanocomposite by thermal treating a ternary solid mixture of nickel formate, elemental sulfur and GO in an autoclave under ambient atmosphere. The prepared nanocomposite exhibits a loose layered structure, spherical or ellipsoidal NiS nanoparticles with a size of 20–100 nm disperse on the well−separated rGO nanosheets. Due to the unique layered structure, the obtained NiS/rGO nanocomposite exhibits an ultrahigh specific capacity of 299.7 mAh g−1 (2157.8 F g−1) at a current density of 2 A g−1 and good rate capacity (161.2 mAh g−1 at 15 A g−1). The hybrid supercapacitor device based on the layered NiS/rGO nanocomposite and an interconnected hierarchical porous carbon delivers a high specific energy of 56.1 Wh kg−1 at a specific power of 880 W kg−1 while exhibits a high capacity retention of 92.4% after 30,000 charge/discharge cycles, demonstrating the promising potential of the developed solid−phase synthesis route for the preparation of NiS/rGO nanocomposites using for high−performance hybrid supercapacitor. © 2021
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000709720200002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150697]
专题	石油化工学院
作者单位	1.Key Laboratory of Low−Carbon Energy and Chemical Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China; 2.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhang, Deyi,Gao, Shiyao,Zhang, Jiwei,et al. Facile solid−phase synthesis of layered NiS/rGO nanocomposite for high−performance hybrid supercapacitor[J]. Journal of Power Sources,2021,514.
APA	Zhang, Deyi.,Gao, Shiyao.,Zhang, Jiwei.,Wang, Jingruo.,She, Wenna.,...&Meng, Xianxin.(2021).Facile solid−phase synthesis of layered NiS/rGO nanocomposite for high−performance hybrid supercapacitor.Journal of Power Sources,514.
MLA	Zhang, Deyi,et al."Facile solid−phase synthesis of layered NiS/rGO nanocomposite for high−performance hybrid supercapacitor".Journal of Power Sources 514(2021).