Single-crystalline Ni(OH)2 and NiO nanoplatelet arrays as supercapacitor electrodes

• DOI: 10.1039/c1nr10802f
• Publication Date: 2011-10-07T20:06:39Z
• Authors: Jiangtian Li; Wei Zhao; Fuqiang Huang; Ayyakkannu Maniva...; Nianqiang Wu
• Keywords: Non-blocking I/O; Tin oxide

Vertically aligned Ni(OH)2 and NiO single-crystalline nanoplatelet arrays were directly grown on the fluorine-doped tin oxide (FTO) substrate by a simple hydrothermal method. The effects of parameters morphology crystal structure nanoarray film investigated. Controlling ammonia persulfate concentrations was key to controlling film. experimental results showed that array promising candidate for supercapacitor electrode. It exhibited high specific capacitance, prompt charge/discharge rate, good stability cycling performance. is believed vertically oriented beneficial charge transfer in electrode ion transport solution during redox reaction.