中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 24 No. 6 June 2014 |
（1. National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province College,
Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research,
College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;
2. School of Materials Science and Engineering, Shandong University, Jin’an 250061, China）
Abstract: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.
Key words: one-dimension; Ag alloy; thermal diffusion; dealloying; porous nanostructure; nanotube
