直流电沉积法制备镍纳米线(阵列)及其磁性能研究  

Preparation and magnetic property of nickel nanowire by direct-current electrodeposition

作　　者：王孝广[1] 潘勇[1] 周兆锋[1] 王宝华[1] 彭冰川[1] 周益春[1] 

机构地区：[1]湘潭大学低维材料及其应用技术教育部重点实验室

出　　处：《功能材料》2008年第2期209-212,共4页Journal of Functional Materials

基　　金：国家自然科学基金杰出青年基金资助项目(10525211);国家高技术研究发展计划(863计划)引导资助项目(2005AA01210)

摘　　要：采用直流电化学沉积方法,在经过阶梯降压处理的多孔阳极氧化铝模板纳米级孔洞中,制备出直径约30nm,长度超过10μm的金属镍纳米线(阵列)。通过场发射扫描电子显微镜,透射电子显微镜,X射线衍射仪,振动样品磁强计对所制备的样品进行形貌、结构及相关性能的表征和测试。结果表明所制备的镍纳米线排列规整,形态均匀,呈fcc结构,且沿[111]方向择优生长,易磁化方向沿纳米线长轴方向。By using DC electrochemical deposition,ordered arrays of nickel nanowire were fabricated into the anodic aluminum oxide membrane after step-decreasing voltage treatment.The nanowires were about 30nm in diameter and 10μm in length.The morphology,structure and magnetic properties of the nickel nanowires were characterized by field emission scanning electron microscopy（FE-SEM）,transmission electron microscopy（TEM）,X-ray diffraction（XRD） and vibrating sample magnetometer（VSM）,respectively.The results indicated that the nanowires in the arrays were very regular and smooth.Such nanowire arrays were stabilized in fcc structure with a well-preferred orientation along[111] direction.The easy magnetic direction of the nanowires was orientated parallel to the long wire axis.

关 键 词：直流电沉积 阶梯降压 镍纳米线 磁性能 

分 类 号：TB34[一般工业技术—材料科学与工程]