采用AAO样模法在多孔阳极氧化铝膜上电沉积镍金属微粒,从而制备出一维镍纳米线阵列.多孔阳极氧化铝膜的制备是采用直流阳极氧化的方法,在EG&G PARC公司的M175型恒电位仪上直流电沉积镍金属微粒,获得镍纳米线和阳极氧化铝膜的组装体系.本实验采用日本电子公司JEM-5600LV扫描式电子显微镜SEM观察阳极氧化铝膜的尺寸和形态;利用X射线衍射仪XRD和电子探针对纳米线的结构和组分进行分析.在EG&G PARC公司的M175型恒电位仪上通过阴极极化曲线测试技术,考察了镍盐溶液中的电沉积过程.由阴极极化曲线分析得出,沉积电流在0.5～3 mA/cm2为最佳范围.电沉积过程中要控制沉积温度,一般25～30℃左右较为合适.
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