Controlled synthesis of one-dimensional Au-Ag porous nanostructures  

可控合成一维金银合金多孔纳米结构(英文)

作　　者：杨立山[1,2] 谷小虎[2] 

机构地区：[1]湖南师范大学化学与化工学院,化学生物学及中药分析教育部重点实验室,资源精细化与先进材料湖南省高校重点实验室,石化新材料与资源精细利用国家地方联合工程实验室,长沙410081 [2]山东大学材料科学与工程学院,济南250061

出　　处：《Transactions of Nonferrous Metals Society of China》2014年第6期1807-1812,共6页中国有色金属学报（英文版）

基　　金：Project (2012CB932800) supported by the National Basic Research Program of China;Project (2012M521330) supported by China Postdoctoral Science Foundation

摘　　要：The fabrication of a new type of one-dimensional Au-Ag porous nanotube（NPT） structure was presented based on a facile combination of nanocrystal growth and surface modification.Ag nanowires with various diameters were firstly served as the chemical plating templates via a polyol-process.Then,one-dimensional（1D） Au-Ag porous nanostructures with tailored structural features could be prepared by controlling the individual steps involved in this process,such as nanowire growth,surface modification,thermal diffusion,and dealloying.Structural characterizations reveal these Au-Ag porous nanotubes,non-porous nanotubes and porous nanowires possess novel nano-architectures with multimodal open porosity and excellent structural continuity and integrity,which make them particularly desirable as novel 1D nanocarriers for biomedical,drug delivery and sensing applications.报道了一种基于纳米晶体生长及表面修饰技术制备一维金银合金多孔纳米管的合成方法。实验采用多元醇热反应制备多种直径的银纳米线为前驱物模板,通过调控银线尺寸、表面修饰、热扩散、脱合金工艺等实验参数获得结构可控的一维金银多孔纳米结构。运用多种测试方法观察了无孔纳米管、多孔纳米管、多孔纳米线等多种一维结构的孔分布及连续结构。

关 键 词：ONE-DIMENSION Ag alloy thermal diffusion DEALLOYING porous nanostructure NANOTUBE 

分 类 号：TB383.1[一般工业技术—材料科学与工程]