Preparation of high purity and superfine CeO2-ZrO2 by hydrothermal method

被引：0

作者：

Zheng, YY ^{[1
]}

Huang, HM ^{[1
]}

Deng, SH ^{[1
]}

Li, DG ^{[1
]}

Yu, SP ^{[1
]}

机构：

[1] Guangdong Univ Technol, Fac Light & Chem Engn, Guangzhou 510090, Guangdong, Peoples R China

来源：

CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2005年 / 21卷 / 08期

关键词：

hydrothermal method; ceria; zirconia; supercritical dryness;

D O I：

暂无

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Superfine composite powders of CeO2-ZrO2 (CZ) and CeO2-ZrO2-La2O3 (CZL) were prepared by hydrothermal method. The effects of pH,temperature and time for hydrothermal process on the performance of the resulting powders were studied. The optimized reaction parameters were on follows: the precursor's pH approximate to 9.0, hydrothermal temperature of 200 T holding for 2 h. Thermal stable powders with average particle size smaller than 10 nm and specific surface area of 171 m(2 .) g(-1) were obtained. A BET specific surface area was still at 44 m(2 .) g(-1) after calcination at 1000 degrees C for 6 hours.

引用

页码：1227 / 1230

页数：4

共 5 条

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