非水体系中电沉积稀土永磁功能合金纳米线  

Electrodeposition of Rare Earth Magnetic Funcition Alloy Nanowires in Nonaqueous System

作　　者：苏轶坤[1] 汤皎宁[1] 姚营[1] 龚晓钟[1] 樊璠[1] 李钧钦[1] 

机构地区：[1]深圳大学深圳市特种功能材料重点实验室,深圳518060

出　　处：《稀有金属材料与工程》2007年第8期1480-1482,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(50471108);深圳大学科研启动基金(200623)

摘　　要：利用多孔阳极氧化铝模板,在尿素-NaBr-KBr-甲酰胺体系中电沉积稀土-铁系金属(La-Co)合金纳米线。用扫描电子显微镜(SEM)观察(La-Co)合金纳米线的表面形貌,用磁振动样品磁强计(VSM)研究了LaCo合金的磁性。结果表明,纳米线直径较为均匀,且每条纳米线的尺寸为70～80nm,与AAO模板的纳米孔径大小相符合;X射线衍射(XRD)分析表明,La-Co合金为LaCo5晶体;在室温下呈现顺磁性的La,当与Co形成合金后,饱和磁矩接近于磁性金属Co。The rare earth-iron series of La-Co alloy nanowires in Porous Anodic Aluminum Oxide（AAO） template were electrodeposited in urea-NaBr-KBr-formamide solution. The superficial morphologies of La-Co alloy nanowires were observed by SEM. The result shows that La-Co alloy nanowires have relatively uniform diameters with 70-80 nm matching the size of AAO template. XRD testing indicates that the La-Co alloy nanowire is LaCos crystal. The investigation of magnetic property for the La-Co alloy nanowires indicates the saturation magnetization of the alloy is almost the same as that of Co.

关 键 词：氧化铝模板 La-Co合金纳米线 离子液体 电沉积 

分 类 号：TB383.1[一般工业技术—材料科学与工程]