Cocatalytic effects of molybdenum doping on Pt/Ce-Zr diesel oxidation catalysts

被引：0

作者：

Huang, Hai-Feng ^{[1
]}

Gu, Lei ^{[1
]}

Qi, Zhong-Hua ^{[1
]}

Lu, Han-Feng ^{[2
]}

机构：

[1] College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou,310014, China

[2] Institute of Catalytic Reaction Engineering, Zhejiang University of Technology, Hangzhou,310014, China

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2015年 / 29卷 / 04期

关键词：

Temperature - Catalytic oxidation - Molybdenum - Sulfur;

D O I：

10.3969/j.issn.1003-9015.2015.04.013

中图分类号：

学科分类号：

摘要：

A series of Pt-Mo/Ce-Zr diesel oxidation catalysts was prepared using an impregnation method. Catalytic activity and sulfur resistance of Pt-Mo/Ce-Zr were investigated with simulated diesel exhausts. Results show that the catalytic performance and sulfur resistance of the catalysts are improved by loading molybdenum. Hydrogen consumption increases with the increase of molybdenum dosage, while the reduction temperature of the surface oxygen on catalysts decreases first and increases afterwards. This temperature reached minimum (200℃) when molybdenum loading was 3%. In addition, conversion rates of over 95% for C3H6 and CO can be achieved at 220℃. ©, 2015, Zhejiang University. All right reserved.

引用

页码：859 / 865