摘要
Ultra-thin Ni(OH)2nanosheets and reduced graphene oxide (Ni(OH)2/rGO) composite was successfully synthesized via a facile solvothermal method. Field emission scanning electron microscopy and high-resolution transmission electron microscopy measurements show the porous Ni(OH)2nanosheets are flatly supported on rGO sheets to form a two-dimensional composite with high specific surface area (210 m2 g−1). Serving as the electrode material for supercapacitors, the Ni(OH)2/rGO composite exhibits high specific capacitance (1886 F g−1at 5 A g−1, 1362 F g−1at 30 A g−1) and excellent cycling stability (∼70% capacity retention after 1000 cycles at 10 A g−1) due to its unique two-dimensional heterostructure and synergistic effect between Ni(OH)2and rGO, indicating two-dimensional Ni(OH)2/rGO composite is promising electrode material for the electrochemical energy storage applications.
源语言 | 英语 |
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页(从-至) | 144-150 |
页数 | 7 |
期刊 | Journal of Alloys and Compounds |
卷 | 691 |
DOI | |
出版状态 | 已出版 - 2017 |