A Facile Approach for Controlling the Orientation of One-Dimensional Mesochannels in Mesoporous Titania Films

被引：47

作者：

Shan, Feng ^{[1
]}

Lu, Xuemin ^{[1
]}

Zhang, Qian ^{[1
]}

Wu, Jun ^{[1
]}

Wang, Yuzhu ^{[2
]}

Bian, Fenggang ^{[2
]}

Lu, Qinghua ^{[1
]}

Fei, Zhaofu ^{[3
]}

Dyson, Paul J. ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 200240, Peoples R China

[3] Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, CH-1015 Lausanne, Switzerland

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 50期

基金：

美国国家科学基金会;

关键词：

MAGNETICALLY INDUCED ORIENTATION; SILICA FILMS; THIN-FILMS; MESOSTRUCTURED SILICA; ALIGNMENT; GROWTH; ARRAYS; TIO2; ROUTE; FIELD;

D O I：

10.1021/ja309168f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Controlling of the orientation of mesochannels in mesostructured thin films is important for the development of novel molecular devices and, in particular, generating vertically aligned mesochannels with respect to the substrate plane is extremely challenging for nonsiliceous materials. We describe a facile and highly effective air flow method, which is able to control the unidirectional alignment of titania mesochannels in a desired direction (e.g., parallel, perpendicular, or oblique) on a large scale, via manipulation of the air flow rate and incident angle. The titania mesochannels were characterized by TEM, SEM, SAXRD, and GISAXS. The unidirectional, vertically aligned mesostructured titania films were found to exhibit excellent ion conductivity.

引用

页码：20238 / 20241

页数：4

共 36 条

[1] General predictive syntheses of cubic, hexagonal, and lamellar silica and titania mesostructured thin films [J].