期刊
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷 342, 期 1-3, 页码 70-75出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2009.04.009
关键词
Mesoporous TiO2; Electrophoretic deposition; Binder free; Controlled thickness; Density gradient
资金
- European Unions Framework FP6, NACBO [NMP3-2004-500802-2]
The rate of cathodic electrophoretic deposition (EPD) of TiO2 nanoparticle agglomerates and the density of the obtained films were measured as a function of the suspension composition, such as the particle concentration and the type of solvent. The difference in the dielectric constants of the solvents determines the ratio between ions and charged particles in the different suspensions and thus the deposition rate. We show that high quality mesoporous TiO2 films can be produced by EPD with a well controlled thickness. In the mesoporous films we observe a high particle density close to the substrate while further apart the particle density is very low resulting in films with a very high porosity. We show that this density profile is independent of the specific solvent or particle concentration used in the suspension. (c) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据