Catalytic oxidation of benzene, toluene and p-xylene over colloidal gold supported on zinc oxide catalyst

被引：123
|
作者：
Wu, Hongjing [1 ]
Wang, Liuding [1 ]
Zhang, Jiaoqiang [2 ]
Shen, Zhongyuan [1 ]
Zhao, Jinghui [1 ]
机构：
[1] NW Polytech Univ, Dept Appl Phys, Xian 710072, Peoples R China
[2] NW Polytech Univ, Dept Appl Chem, Xian 710072, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2011年 / 12卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Colloidal gold nanoparticles; ZnO; BTX oxidation; SMOI; LOW-TEMPERATURE; CO OXIDATION; DEEP OXIDATION; PT/AL2O3; CATALYSTS; CRYSTALLITE SIZE; CARBON-MONOXIDE; GAMMA-ALUMINA; NOBLE-METAL; N-HEXANE; O-XYLENE;
D O I：
10.1016/j.catcom.2011.02.012
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：
Au was loaded (1.5 wt.%) on the supports (ZnO, Al(2)O(3) and MgO) by a colloidal deposition method. For a range of low temperatures (50-300 degrees C), the catalytic activity of Au/ZnO was much greater than that of Au/Al(2)O(3) and Au/MgO. In particular, for the Au/ZnO, the benzene conversion exceeded 80% at 150 degrees C. The results of catalyst characterization suggested that the high catalytic activity of the Au/ZnO might be attributed to the effects of strong metal-oxide interaction which is possibly originated from the small lattice parameter difference between Au {111} and ZnO {101} lattice planes. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：859 / 865
页数：7
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