Preparation of NiO nanoflakes under different calcination temperatures and their supercapacitive and optical properties
详细信息 查看全文
- 作者：Jiangshan Zhao ; Hua Liu ; Qiang Zhang ; zhangqiang6299@bit.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Ion diffusion ; Ion exchange membrane ; β-Ni(OH)2 nanoflake ; NiO nanoflakes ; Supercapacitors
- 刊名：Applied Surface Science
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：392
- 期：Complete
- 页码：1097-1106
- 全文大小：3385 K
文摘
- •
The NiO nanocrystals were prepared by calcinating Ni(OH)2 nanoflakes synthesized via an ion diffusion controlled by ion exchange membrane.
- •
The NiO sample calcinated at 400 °C exhibits the highest specific capacitance of 381 F g−1 and specific surface area of 188.4 m2 g−1.
- •
The NiO samples with the lower binding energy are harder to capture OH- than Ni(OH)2, which is disadvantageous to charge storage.
- •
The UV–Vis absorption peak of NiO samples have a red shift with increasing the calcination temperature due to the increase in crystallinity.