High thermal stability of ceria-based mixed oxide catalysts supported on ZrO2 for toluene combustion

被引：30

作者：

Lu, Han-Feng ^{[1
]}

Zhou, Ying ^{[1
]}

Han, Wen-Feng ^{[1
]}

Huang, Hai-feng ^{[1
]}

Chen, Yin-Fei ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Res Inst Catalyt React Engn, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2013年 / 3卷 / 06期

关键词：

VOLATILE ORGANIC-COMPOUNDS; COMPLETE OXIDATION; DOPED CERIA; TEMPERATURE; CHLOROBENZENE; METHANE; COPPER;

D O I：

10.1039/c3cy20754d

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：

Cu-Mn-Ce mixed oxide catalysts (CMCs) supported on ZrO2 were prepared by an impregnation method. Their catalytic activity was evaluated by a model reaction, that of toluene combustion. 5% CMC/ZrO2 catalysts show a very high activity and thermal stability, and 90% of toluene conversion could be obtained at temperatures below 260 degrees C, even with the catalyst being annealed at 900 degrees C. A new phase of Zr0.88Ce0.12O2 in the interface was formed by the interaction between ZrO2 and CMC on the catalyst with low loading. Zr0.88Ce0.12O2 serves as the actual carrier of the active phase, and can significantly improve the thermal stability of the catalyst.

引用

收藏

页码：1480 / 1484

页数：5

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