Co88Ni12合金纳米线阵列的制备与磁性能表征  

Fabrication and magnetic properties of Co88Ni12 alloy nanowires array

作　　者：王孝广[1,2] 潘勇[1,2,3] 王宝华[1,2] 周兆锋[1,2] 周益春[1,2,3] 

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,湖南湘潭411105 [2]湘潭大学材料与光电物理学院,湖南湘潭411105 [3]湖南利德材料科技股份有限公司,湖南株洲412000

出　　处：《功能材料》2007年第A03期1064-1067,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）资助项目（2005AA01210）.

摘　　要：采用直流电化学沉积方法，在多孔阳极氧化铝模板的纳米级微孔内电沉积钴镍合金，制备出直径为30nm，长度为几个微米的准一维合金纳米线（阵列）材料；随后采用场发射扫描电子显微镜（FE-SEM），透射电子显微镜（TEM），X射线衍射仪（XRD），振动样品磁强计（VSM）对纳米线的形貌、结构及其磁性能进行了相关表征与测试．发现所制备的Co88Ni12合金纳米线表面光滑，粗细均一，具有较高的长径比；呈现密排六方结构（hcp），沿[100]择优取向生长，易磁化方向沿纳米线轴向方向．Co88Ni12 By using DC electrochemical deposition, The quasi-one dimension alloy nanowire arrays with the diameter of 30nm and the length of several micrometers were successfully obtained through pigmented Co-Ni alloy into the nanopores of anodic aluminum oxide membrane. The morphology, structure and magnetic properties of the Co88Ni12 alloy nanowires were characterized by field emission scanning electron microscope（FE-SEM）, Iransmission electron microscope（TEM）, X-ray diffraction（XRD） and vibrating sample magnetometer（VSM）, respectively. The results indicated that the Co88Ni12 alloy nanowires in the array were very regular and smooth, with a high aspect ratio. Such nanowire arrays were in hcp structure, which have [100] preferred orientations during growth. The easy magnetic direction of the Co88Ni12 alloy nanowire arrays was orientated parallel to the long wire axis.

关 键 词：Co88Ni12合金纳米线 直流电沉积 AAO模板 磁性能 

分 类 号：O646[理学—物理化学]