Oxidation of lean formaldehyde in air over an Au/CeO2 catalyst and its kinetics

被引：15
|
作者：
Yang, Xuzhuang [1 ,3 ]
Shen, Yuenian [1 ]
Bao, Lili [1 ]
Zhu, Huaiyong [2 ]
Yuan, Zhangfu [3 ]
机构：
[1] Inner Mongolia Univ, Coll Chem & Chem Engn, Hohhot 010021, Peoples R China
[2] Queensland Univ Technol, Sch Phys & Chem Sci, Brisbane, Qld 4001, Australia
[3] Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 2008年 / 93卷 / 01期
基金：
澳大利亚研究理事会; 中国国家自然科学基金;
关键词：
gold nanoparticles; kinetics; Au/CeO2; supported catalyst;
D O I：
10.1007/s11144-008-5187-8
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：
The oxidation of low concentration formaldehyde in air over Au/CeO2, prepared by co-precipitation, was investigated. Power-law kinetic models were proposed and the parameters were estimated, which are r = -0.46 x e(-14612/RT) C-HCHO(303 K < T < 363 K) and r = -295.78 x e(-34178/RT) C-HCHO (363 K < T < 413 K). The mechanism of the reaction at low temperatures might be different from that at high temperatures.
引用
收藏
页码：19 / 25
页数：7
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