SiO2/Ta2O5 core-shell nanowires and nanotubes

被引：46

作者：

Chueh, Ya-Lun

Chou, Li-Jen ^{[1
]}

Wang, Zhong Lin

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu, Taiwan

[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2006年 / 45卷 / 46期

关键词：

nanostructures; reduction; silicon; tantalum; template synthesis;

D O I：

10.1002/anie.200602228

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Tantalizing silica: SiO2/Ta2O 5 core-shell nanostructures were formed by reducing SiO2 nanowires under a Ta atmosphere at 950°C. The diameter of the SiO 2 nanowires inside the core-shell nanostructures could be manipulated by modifying the reduction time. Treatment of the core-shell structures in dilute HF solution yielded Ta2O5 nanotubes (see TEM image), whereas Ta2O5 nanowires were formed directly by increasing the reduction time. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.

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页码：7773 / 7778

页数：6

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