Synthesis and UV-shielding properties of ZnO- and CaO-doped CeO2 via soft solution chemical process

被引：224

作者：

Li, RX

Yabe, S

Yamashita, M

Momose, S

Yoshida, S

Yin, S

Sato, T

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

[2] Kose Co, Tokyo 1140005, Japan

[3] Nippon Inorg Colour & Chem, Tokyo 1740041, Japan

来源：

SOLID STATE IONICS | 2002年 / 151卷 / 1-4期

关键词：

ceria; dopants; UV-shielding; soft solution process; nanoparticles;

D O I：

10.1016/S0167-2738(02)00715-4

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：

Fine particles of ZnO- and CaO-doped CeO2 for use as an ultraviolet (UV) filter were synthesized via soft solution chemical processes at 40 degreesC and final pH 5-6. Especially, Ce1 - xZnxO2 - x solid solutions were systematically investigated in a wide ZnO concentration range for the first time and the solubility limit of ZnO in a fluorite structure was suggested to be x = 0.561. Minor CaO solubility in ceria was observed under present reaction conditions (pH 5 - 6). Novel nanoparticles with significantly reduced oxidation catalytic activity, as well as excellent UV-absorption capability were obtained by doping ZnO or CaO in CeO2. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：235 / 241

页数：7

共 11 条

[1] Bulk reduction and oxygen migration in the ceria-based oxides [J].