Conversion of a Bi nanowire array to an array of Bi-Bi2O3 core-shell nanowires and Bi2O3 nanotubes

被引：214

作者：

Li, L ^{[1
]}

Yang, YW ^{[1
]}

Li, GH ^{[1
]}

Zhang, LD ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys, Hefei 230031, Peoples R China

来源：

SMALL | 2006年 / 2卷 / 04期

关键词：

bismuth; core-shell materials; nanotubes; nanowires; template synthesis;

D O I：

10.1002/smll.200500382

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A template-based heat-treatment method has been developed to convert metal nanowire arrays into arrays of metal-metal oxide core-shell nanowires and single-crystalline metal oxide nanotubes. This process is. demonstrated by kinetically controlling the conversion of single-crystalline Bi nanowires to Bi-Bi2O3 core-shell nanowires via a multistep, slow oxidation method, and then controlling their further conversion to a single-crystalline Bi2O3 nanotube array via fast oxidation. This process can conveniently be extended to fabricate a free-standing, easily oxidized metal-metal oxide nanowire and metal oxide nanotube array, which may have,future applications in nanoscale optics, electronics, and magnetics.

引用

页码：548 / 553

页数：6

共 73 条

[1] Smoke sensor on the base of Bi2O3 sesquioxide [J].