Heating-sol-gel template process for the growth of TiO2 nanorods with rutile and anatase structure

被引：113

作者：

Miao, L ^{[1
]}

Tanemura, S

Toh, S

Kaneko, K

Tanemura, M

机构：

[1] Nagoya Inst Technol, Dept Environm Technol & Urban Planning, Showa Ku, Nagoya, Aichi 4668555, Japan

[2] Kyushu Univ, HVEM Lab, Dept Mat Sci & Engn, Higasi Ku, Fukuoka 8128581, Japan

来源：

APPLIED SURFACE SCIENCE | 2004年 / 238卷 / 1-4期

关键词：

heating-sol-gel template process; nanorods synthesis; titanium dioxide; TEM analysis; chemical composition;

D O I：

10.1016/j.apsusc.2004.05.201

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Densely assembled nanorods consist of the nanoparticles of rutile and those of anatase have been fabricated successfully by a heating-sol-gel template process, respectively. The size of nanorods varies as a diameter of 100-300 nm and a length of several micrometers, which are controllable by the pore size of the template. The similarities and/or differences of the fabricated process and microstructure for rutile and anatase nanorods were discussed. TEM image revealed that anatase nanorods are the aggregates of many indistinct polygonal nanoparticles up to similar to10 nm in diameter, while rutile nanorods are the aggregates of irregular octagon and/or hexagon nanoparticles in 10-30 nm diameter. XRD, ED and HRTEM lattice image confirmed the nanorods fabricated by the heating-sol-gel process are well assembled by many individual nanoparticles. The nanoparticles in rutile nanorods were larger than those in anatase nanorods possibly due to the different heat-treatment procedure. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：175 / 179

页数：5

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