Synthesis and Characteristics of La Doped Ceria-Zirconia Composite with Uniform Nano-Crystallite Dispersion

被引：3

作者：

Chen, Hangrong ^{[1
]}

Shi, Jianlin ^{[1
]}

Hue, Zile ^{[1
]}

Zhao, Jinjin ^{[1
]}

Gao, Jianhua ^{[1
]}

Lei, Li ^{[1
]}

Yan, Dongsheng ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance & Superfine Micros, Shanghai 200050, Peoples R China

来源：

SCIENCE OF ADVANCED MATERIALS | 2010年 / 2卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Ceria-Zirconia Composite; Nanocrystallites; Surfactant-Controlled Synthesis; High Dispersion; BLOCK-COPOLYMER; SURFACE-AREA; MIXED OXIDES; CATALYSTS; CEO2; OXYGEN; REDUCTION; PARTICLES; POWDERS; REDOX;

D O I：

10.1166/sam.2010.1060

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A poly block copolymer surfactant-controlled process combined with hydrothermal treatment has been developed for the preparation of novel La doped ceria-zirconia nanocomposite. This composite shows uniform particle dispersion and high surface areas (>160 m(2)/g). The average crystallite sizes of this nanocomposite range from 4.2 nm to 5.8 nm when calcined at 500 degrees C similar to 700 degrees C, and a highly stable nanoporous structure of around 30 nm in pore diameter can be well maintained after the further thermal treatment from 500 degrees C to 900 degrees C. This nano-composite can be homogeneously dispersed into H(2)O solution with no obvious agglomerates, and thus can well be coated onto the surface of metal honeycomb substrates with the further catalytic applications.

引用

页码：43 / 50

页数：8

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