Preparation of three dimensionally ordered macroporous Li0.35La0.55TiO3 by colloidal crystal templating process

被引：34

作者：

Dokko, K

Akutagawa, N

Isshiki, Y

Hoshina, K

Kanamura, K

机构：

[1] Tokyo Metropolitan Univ, Dept Appl Chem, Grad Sch Engn, Hachioji, Tokyo 1920397, Japan

[2] CREST, Japan Sci & Technol Agcy, Kawaguchi, Saitama 3320012, Japan

来源：

SOLID STATE IONICS | 2005年 / 176卷 / 31-34期

关键词：

lithium ion conductor; perovskite; colloidal crystal templating; sol-gel; macroporous membrane;

D O I：

10.1016/j.ssi.2005.05.018

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：

Three dimensionally ordered macroporous Li+ ion conductive membranes of Li0.35La0.55TiO3 were prepared by a colloidal crystal templating method combined with sol-gel process. Colloidal crystal composed of monodisperse polystyrene particles (3 gm diameter) was utilized as a template. Sol of Li-La-Ti-O was prepared from lithium acetate, lanthanum acetate, and titanium tetraisopropoxide. The sol was injected into the template, and it was converted to gel. Polystyrene particles were removed by calcinations at high temperatures, and then macroporous Li0.35La0.55TiO3 was obtained. Li+ ion conductivity in the crystal grain part of Li0.35La0.55TiO3 annealed at 1000 degrees C was 2 x 10(-4) S cm(-1) at room temperature. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：2345 / 2348

页数：4

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