Synthesis of Various Metal/TiO2 Core/shell Nanorod Arrays  

多种金属／TiO2核壳纳米棒阵列的通用制备方法

作　　者：祝巍[1] 王冠中[1] 洪勋[1] 沈小双[1] 

机构地区：[1]中国科学技术大学合肥微尺度物质科学国家实验室 物理系,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2011年第1期91-96,I0004,共7页化学物理学报（英文）

基　　金：This work is supported by the National Natural Science Foundation of China （No.10574122, No.50772110, No.50721091） and the National Basic Research Program of China （No.2011CB921400, No.2007CB925202, No.2009CB939901）.

摘　　要：We present a general approach to fabricate metal/TiO2 core/shell nanorod structures by twostep electrodeposition. Firstly, TiO2 nanotubes with uniform wall thickness are prepared in anodic aluminum oxide （AAO） membranes by electrodeposition. The wall thickness of the nanotubes could be easily controlled by modulating the deposition time, and their outer diameter and length are only limited by the channel diameter and the thickness of the AAO membranes, respectively. The nanotubes＇ tops prepared by this method are open, while the bottoms are connected directly with the Au film at the back of the AAO membranes. Secondly, Pd, Cu, and Fe elements are filled into the TiO2 nanotubes to form core/shell structures. The core/shell nanorods prepared by this two-step process are high density and free-standing, and their length is dependent on the deposition time.

关 键 词：TITANIA NANOTUBE Core/shell ELECTRODEPOSITION Membrane 

分 类 号：O[理学]