Ultrathin Ni(OH)(2) layer coupling with graphene for fast electron/ion transport in supercapacitor
文献类型：期刊论文
| 作者 | Zhang, XY; Wang, HS; Shui, LL; Zhou, GF; Wang, X; Ma, RG; Wang, JC |
| 刊名 | SCIENCE CHINA-MATERIALS
 |
| 出版日期 | 2020-09-15 |
| ISSN号 | 2095-8226 |
| DOI | 10.1007/s40843-020-1427-0 |
| 文献子类 | Article; Early Access |
| 英文摘要 | Integration of fast electrochemical double-layer capacitance and large pseudocapacitance is a practical way to improve the overall capability of supercapacitor, yet remains challenging. Herein, an effective cyanogel synthetic strategy was demonstrated to prepare ultrathin Ni(OH)(2)nanosheets coupling with conductive reduced graphene oxide (rGO) (rGO-Ni(OH)(2)) at ambient condition. Ultrathin Ni(OH)(2)nanosheet with 3-4 layers of edge-sharing octahedral MO(6)maximally exposes the active surface of Faradic reaction and promotes the ion diffusion, while the conductive rGO sheet boosts the electron transport during the reaction. Even at 30 A g(-1), the optimal sample can deliver a specific capacitance of 1119.52 F g(-1), and maintain 82.3% after 2000 cycles, demonstrating much higher electrochemical capability than bare Ni(OH)(2)nanosheets. A maximum specific energy of 44.3 W h kg(-1)(148.5 W kg(-1)) is obtained, when assembled in a two-electrode system rGO-Ni(OH)(2)//rGO. This study provides an insight into efficient construction of two dimensional hybrid electrodes with high performance for the new-generation energy storage system. |
| WOS关键词 | DOUBLE HYDROXIDE NANOSHEETS ; ELECTROCHEMICAL PERFORMANCE ; CARBON MATERIALS ; ENERGY-STORAGE ; ELECTRODES ; HYBRID ; NI ; NANOCOMPOSITES ; COMPOSITE |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27757]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, XY,Wang, HS,Shui, LL,et al. Ultrathin Ni(OH)(2) layer coupling with graphene for fast electron/ion transport in supercapacitor[J]. SCIENCE CHINA-MATERIALS,2020. |
| APA | Zhang, XY.,Wang, HS.,Shui, LL.,Zhou, GF.,Wang, X.,...&Wang, JC.(2020).Ultrathin Ni(OH)(2) layer coupling with graphene for fast electron/ion transport in supercapacitor.SCIENCE CHINA-MATERIALS. |
| MLA | Zhang, XY,et al."Ultrathin Ni(OH)(2) layer coupling with graphene for fast electron/ion transport in supercapacitor".SCIENCE CHINA-MATERIALS (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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