以六水合硝酸镍为镍源,聚乙烯吡咯烷酮（PVP）为表面活性剂,采用微波辅助水热方法制备前驱体α-Ni（OH）2,经过500℃热处理之后得到具有中空微纳结构NiO粉体。以XRD、SEM、TEM、UV-Vis测试手段,对样品进行了分析,并对其电化学性能进行初步的测试。结果表明合成的样品为立方晶系的NiO,其结构为中空球形。C-V曲线表明了样品具有典型的法拉第准电容,可逆性良好,具有良好的电化学稳定性。
α-Ni（OH）2 percursor was synthesized using PVP as surfactant and nickel nitrate as nickel source through a microwave-assisted hydrothermal method.The NiO with micro-nano structure was obtained after calcined of the precursor α-Ni（OH）2 at 500℃.The chemical structure and surface morphology of the as-obtained products were well characterized by XRD,SEM,TEM,UV-Vis and the electrochemical character was initially explored.The experimental results shown that the as-prepared products was cubic system and the morphology was microballoon sphere.The C-V shows that the sample had obvious Faraday quasi capacitance and stabilized electrochemical character.Also,the results indicated that it was reversible.
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