Preparation and characterization of La-Co alloy nanowire arrays by electrodeposition in AAO template under nonaqueous system  

作　　者：龚晓钟 汤皎宁 李均钦 梁永康 

机构地区：[1]College of Chemistry and Chemical Engineering,Shenzhen University [2]College of Material,Shenzhen Key Laboratory of Special Functional Materials,Shenzhen University

出　　处：《中国有色金属学会会刊：英文版》2008年第3期642-647,共6页Transactions of Nonferrous Metals Society of China

基　　金：Project(04011311) supported by the Natural Science Foundation of Guangdong Province, China;Project(2006B14001001) supported by the Science and Technology Plan of Guangdong Province, China;Project(50471108) supported by the National Natural Science Foundation of China

摘　　要：La-Co alloy nanowires can be made in pulse reversal current(PRC) and direct current(DC) electrodepositions under nonaqueous system, with the porous anodic aluminum oxide(AAO) as template. This membrane is subject to the dual-oxidation (two-step) anodizing. Scanning electron microscope(SEM) examination shows that all of the nanowires have uniform diameter about 200 nm, and their diameters are determined by the pore diameter of applied AAO template. X-ray energy dispersion analysis indicates that the chemical composition of La and Co elements is very close to 1-2 in stoichiometry. X-ray diffraction pattern investigation demonstrates that La-Co nanowire is the face-centered cubic(FCC) LaCo13.La-Co alloy nanowires can be made in pulse reversal current（PRC） and direct current（DC） electrodepositions under nonaqueous system, with the porous anodic aluminum oxide（AAO） as template. This membrane is subject to the dual-oxidation （two-step） anodizing. Scanning electron microscope（SEM） examination shows that all of the nanowires have uniform diameter about 200 nm, and their diameters are determined by the pore diameter of applied AAO template. X-ray energy dispersion analysis indicates that the chemical composition of La and Co elements is very close to 1：2 in stoichiometry. X-ray diffraction pattern investigation demonstrates that La-Co nanowire is the face-centered cubic（FCC） LaCo13.

关 键 词：镧钴合金 纳米导体 电沉积 AAO模板 

分 类 号：TG174.4[金属学及工艺—金属表面处理]