Synthesis and characterization of different morphologies of Ni(OH)2 nanocrystals by a gas-liquid diffusion method at room temperature and supercapacitive properties
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- 作者：Jiangshan Zhao zhaojshtxy@163.com" class="auth_mail" title="E-mail the corresponding author ; Zhuo Shi ; Qiang Zhang ; zhangqiang6299@bit.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Gas&ndash ; liquid diffusion ; Ni(OH)2 nanocrystals ; Room temperature ; Supercapacitor
- 刊名：Journal of Alloys and Compounds
- 出版年：2016
- 出版时间：25 May 2016
- 年：2016
- 卷：668
- 期：Complete
- 页码：176-186
- 全文大小：2649 K
文摘
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Different morphologies of Ni(OH)2 nanocrystals were synthesized via a gas–liquid diffusion method at room temperature.
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The possible formation mechanism of the Ni(OH)2 nanocrystals was discussed.
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The evolution of the different morphologies of Ni(OH)2 nanostructures is due to the increase of precursor concentrations.
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The microsphere-like Ni(OH)2 prepared at a concentration of 0.1 M NiSO4 exhibits the highest specific capacitance of 1799 F g−1.
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The microsphere-like Ni(OH)2 shows 92.8% capacitance retention after 2000 cycles.