以六水合硝酸镍为镍源,尿素为水解控制剂及聚乙二醇(PEG)为表面活性剂,采用微波水热法成功合成了由亚微米片自组装而成的花状结构Ni(OH)2,并通过进一步的热处理得到相同结构形貌的NiO.利用XRD、SEM、TEM、FTIR、UV-Vis等方法对产物进行了表征,结果表明,自组装花状结构Ni(0H)2的直径为2.5-4.Oμm,单个亚微米片的厚度约10-20nm,宽约在0.5-1.51μm之间.紫外吸收光谱分析表明,NiO样品的禁带宽度(Eg)值为3.27eV,有明显红移现象.将所制备的氢氧化镍制成电极,其电化学性能测试表明它具有良好的可逆性.
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