Three-dimensional porous graphene/nickel cobalt mixed oxide composites for high-performance hybrid supercapacitor
文献类型：期刊论文
| 作者 | Zhou, Yu1; Wen, LeLe1; Zhan, Ke1; Yan, Ya1,2; Zhao, Bin1,2 |
| 刊名 | Ceramics International
 |
| 出版日期 | 2018 |
| ISSN号 | 02728842 |
| DOI | 10.1016/j.ceramint.2018.08.292 |
| 英文摘要 | Transition metallic mixed oxides have gained great interest for hybrid supercapacitor because of their extremely low cost and excellent electrochemical performance. Herein, we report a novel approach of overabundant metallic-ions- induced combination and space confined Ostwald ripening strategy to synthesize three-dimension graphene (3DG)/metal organic framework composite which could be transformed into 3DG/NixCo1-xO aerogel with NixCo1-xO nanoparticles well dispersed on graphene framework. The hierarchical structure provides highly interconnected porous conductive network and enhances contact between NixCo1-xO nanoparticle and graphene greatly. Electrochemical measurement indicates that the 3DG/NixCo1-xO electrode delivers a specific capacitance of 697.8 F g−1, remarkable rate performance with 89% capacitance retention at current density of 20 A g−1, and outstanding cycle stability with 81% specific capacitance retention after 10,000 cycles. An optimized hybrid supercapacitor adopting 3DG/NixCo1-xO composite as the cathode and 3DG as the anode is constructed, which shows a superior energy density of 27.2 W h kg−1 at a power density of 725 W kg−1 and satisfactory cycle stability of 86% capacitance retention after 10,000 cycles at a current density of 5 A g−1. © 2018 Elsevier Ltd and Techna Group S.r.l. |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25144]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.School of Material Science and Engineering, University of Shanghai for Science and Technology, Shanghai; 200093, China; 2.Shanghai Innovation Institute for Materials, Shanghai, China |
| 推荐引用方式 GB/T 7714 | Zhou, Yu,Wen, LeLe,Zhan, Ke,et al. Three-dimensional porous graphene/nickel cobalt mixed oxide composites for high-performance hybrid supercapacitor[J]. Ceramics International,2018. |
| APA | Zhou, Yu,Wen, LeLe,Zhan, Ke,Yan, Ya,&Zhao, Bin.(2018).Three-dimensional porous graphene/nickel cobalt mixed oxide composites for high-performance hybrid supercapacitor.Ceramics International. |
| MLA | Zhou, Yu,et al."Three-dimensional porous graphene/nickel cobalt mixed oxide composites for high-performance hybrid supercapacitor".Ceramics International (2018). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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