Graphene foam functionalized with electrodeposited nickel hydroxide for energy applications
Diamond and Related Materials(2015)
摘要
The need of new systems for the storage and conversion of renewable energy sources is fueling the research in supercapacitors. In this work, we propose a low temperature route for the synthesis of electrodes for these supercapacitors: electrodeposition of a transition metal hydroxide–Ni(OH)2 on a graphene foam. This electrode combines the superior mechanical and electrical properties of graphene, the large specific surface area of the foam and the large pseudocapacitance of Ni(OH)2. We report a specific capacitance up to 900F/g as well as specific power and energy comparable to active carbon electrodes. These electrodes are potential candidates for their use in energy applications.
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关键词
3D-graphene,Nickel hydroxide,Electrodeposition,Supercapacitor,Energy
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