Preparation and proton conductivity of monodisperse nanocrystals of pyrochlore-type antimonic acid and its niobium-substituted materials

被引：7

作者：

Ozawa, K

Hase, M

Fujii, H

Eguchi, M

Yamaguchi, H

Sakka, Y

机构：

[1] Natl Inst Mat Sci, Mat Engn Lab, Tsukuba, Ibaraki 3050047, Japan

[2] Ibaraki Univ, Fac Engn, Dept Mat Sci, Hitachi, Ibaraki 3168511, Japan

来源：

ELECTROCHIMICA ACTA | 2005年 / 50卷 / 16-17期

关键词：

monodisperse nanocrystals; pyrochlore-type antimonic acid; niobium substitution; proton conductivity; solution processing;

D O I：

10.1016/j.electacta.2004.11.051

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The well-defined monodisperse nanocrystals of pyrochlore-type antimonic acid, HSbO3-nH(2)O (n=0.5), and its mobium-substituted materials. HSb1-xNbxO3• nH(2)O (0 ≤ x ≤ 0-09, n=0.5), were successfully prepared by solution processing using the direct reaction of an aqueous H2O2 solution with antimony and niobiurn alkoxides, Sb(O-iso-C3H7)(3) and Nb(O-iso-C3H7)(5). It was found that the crystal sizes of these materials can be controlled from 35 to 50nm with intervals of a few nanometers by changing the initial Sb(O-iso-C3H7)(3) concentration. The proton conductivity of the materials is discussed in relation to their structural properties. © 2004 Elsevier Ltd. All rights reserved.

引用

页码：3205 / 3209

页数：5