摘要
以氧化石墨、间苯二酚、甲醛和泡沫镍为原料,经85 o C水热碳化处理,在泡沫镍表面原位聚合形成了碳凝胶/泡沫镍一体化电极,冷冻干燥处理后可得多孔碳凝胶/泡沫镍一体化电极.水系和有机系的超级电容器测试表明,多孔碳凝胶/泡沫镍一体化电极具有较高的比容量和良好的循环稳定性,其独特的一体化电极组成和多孔结构有利于电子和电解液离子的有效传输.
Herein, a facile synthesis has been explored to prepare carbon aerogel/Ni foam. Graphene oxide, resorcinol and formaldehyde serve as precursors and polymerize in-situ on the Ni foam after hydrothermal synthesis at 85 ℃. After lyophilization treatment, the carbon aerogel/Ni foam with porous structure can be obtained. Electrochemical investigations reveal that the carbon aerogel/Ni foam exhibits superior performances in both aqueous and organic electrolytes involving high specific capacitance and long-term cycling stability. The excellent properties can be ascribed to the unique formation and porous structure, which allows more effective transportations of electron and electrolyte ion.
出处
《电化学》
CAS
CSCD
北大核心
2015年第6期554-559,共6页
Journal of Electrochemistry
基金
中国科学院"百人计划"和基金委优秀青年基金(No.21422108)资助
关键词
碳凝胶/泡沫镍一体化电极
超级电容器
水热法
多孔结构
carbon aerogel/nickel foam electrode
supercapacitor
hydrothermal synthesis
porous structure
