Facile solid−phase synthesis of layered NiS/rGO nanocomposite for high−performance hybrid supercapacitor | |
Zhang, Deyi1,2; Gao, Shiyao1,2; Zhang, Jiwei1,2; Wang, Jingruo1,2; She, Wenna1,2; Wang, Kunjie1,2; Xia, Xu2; Yang, Biao2; Meng, Xianxin2 | |
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). |
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