具有定制孔径的大孔介孔纳米晶TiO₂薄膜的制备

Preparation of large-pore mesoporous nanocrystalline TiO2 thin films with tailored pore diameters.

作者信息

Liu Kesong, Fu Honggang, Shi Keying, Xiao Fengshou, Jing Liqiang, Xin Baifu

出版信息

J Phys Chem B. 2005 Oct 13;109(40):18719-22. doi: 10.1021/jp054546p.

Abstract

A novel and facile synthesis route to large-pore mesoporous nanocrystalline anatase thin films with tunable pore diameters in narrow distribution of sizes ranging from 8.3 to 14 nm is reported, using triblock copolymer as the template and Ti(OBu(n))4 as the inorganic precursor. The obtained materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and nitrogen adsorption. A reasonable formation mechanism is also presented in this work.

摘要

报道了一种新颖且简便的合成路线，以三嵌段共聚物为模板、Ti(OBu(n))4为无机前驱体，制备出孔径可调、尺寸分布窄（8.3至14纳米）的大孔介孔纳米晶锐钛矿薄膜。通过X射线衍射、扫描电子显微镜、透射电子显微镜和氮气吸附对所得材料进行了表征。本工作还提出了合理的形成机理。