Syntheses of TiO2(B) nanowires and TiO2 anatase nanowires by hydrothermal and post-heat treatments

被引:267
作者
Yoshida, R [1 ]
Suzuki, Y [1 ]
Yoshikawa, S [1 ]
机构
[1] Kyoto Univ, Inst Adv Energy, Uji, Kyoto 6110011, Japan
关键词
hydrothermal process; TiO2(B) nanowim anatase nanowire; microstructure;
D O I
10.1016/j.jssc.2005.04.025
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
TiO2(B) nanowires and TiO2 anatase nanowires were synthesized by the hydrothermal processing in 10 M NaOH aq. at 150 degrees C followed by the post-heat treatment at 300-800 degrees C. As-synthesized Na-free titanate nanowires (prepared by the hydrothermal treatment and repeated ion exchanging by HCl (aq.) were transformed into TiO2(B) structure with maintaining 1-D morphology at 300-500 degrees C, and further transformed into anatase structure at 600-800 degrees C with keeping 1-D shape. At 900 degrees C, they transformed into rod-shaped rutile grains. Microstructure of these 1-D TiO2 nanomaterials is reported. (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:2179 / 2185
页数:7
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