电化学修饰阳极氧化铝模板法合成镍和镍铜合金纳米线
首发时间:2006-09-06
摘要:以电化学修饰的阳极氧化铝为模板,采用直流电沉积法成功制备镍和镍铜合金纳米线阵列。SEM分析表明可以制备大量纳米线且直径均匀,彼此平行;XRD结果表明制备纳米线为多晶态结构;SQUID对样品的磁学性质进行了研究,结果表明镍铜合金纳米线矫顽力和剩磁比均大于相应的镍纳米线。
关键词: 修饰的多孔阳极氧化铝 镍纳米线 镍铜纳米线
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Electrodeposition of Ni and Ni-Cu Nanowires in Rectified Porous Anodic Alumina Membrane
Abstract:Highly ordered Ni and Ni-Cu nanowires were electrodeposited into the micropores of the porous anodic alumina (PAA) template which was fabricated by the method of two-step anodizing and the thickness of barrier layer which was formed during the anodizing process was rectified by applying current limited anodization steps.The X-ray diffration (XRD) was used to characterize the Ni and Ni-Cu nanowires and the morphology of these nanowires was examined by the way of scanning electron microscopy (SEM).The SQUID magnetometry was used to investigate the magetic propeties of the nanowires. It is found that the coercivity and remanence ratio of Ni-Cu nanowire is larger than that of Ni nanowire.
Keywords: the rectified porous alumina Ni nanowire Ni-Cu nanowire
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No.8231786141157539****
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