Synthesis and tuning of ordering and crystallinity of mesoporous titanium dioxide film

被引:45
作者
Agarwala, S. [1 ]
Ho, G. W. [1 ]
机构
[1] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore
关键词
Titanium dioxide; Mesoporous; Sol-gel; Anatase; THIN-FILMS; TIO2;
D O I
10.1016/j.matlet.2009.04.036
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Synthesis of well-organized and highly crystalline mesoporous titania (TiO2) film is demonstrated using triblock copolymer (Pluronic P123) as a structure directing template, through the evaporation induced self-assembly (EISA) process. The issue of thermal and structural stability of a mesoporous TiO2 film Was addressed via optimization of annealing temperature and time. An anatase phase, high crystallinity TiO2 HIM with ordered pores was obtained at 430 degrees C after annealing for 15 min. The synthesized film was crack free with TiO2 nanoparticle size of 10-15 nm, quasi-hexagonal pore diameter in the range of 8-10 nm and film thickness of similar to 150 nm. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1624 / 1627
页数:4
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