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RESEARCH ARTICLE
Contents Vol 69(10)

The Effects of SiO2 and CeO2 Addition on the Performances of MnOx/TiO2 Catalysts

Juhua Luo A C , Hongkai Mao A B , Xu Wang A and Wei Yao A
+ Author Affiliations
- Author Affiliations

A School of Materials Engineering, Yancheng Institute of Technology, Yancheng 224051, China.

B School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China.

C Corresponding author. Email: luojuhua@163.com

Australian Journal of Chemistry 69(10) 1180-1185 https://doi.org/10.1071/CH16060
Submitted: 2 February 2016  Accepted: 18 April 2016   Published: 25 May 2016

Abstract

A TiO2-SiO2 mixed oxide was obtained by a co-precipitation method. MnOx-CeO2/TiO2-SiO2 were prepared by an impregnation method and their activity towards the selective catalytic reduction of NO with NH3 at low temperature were evaluated. Compared with pure TiO2, TiO2-SiO2 exhibited an evidently larger surface area and pore volume, and a smaller average pore diameter with narrow distribution. The NO conversion of the MnOx/TiO2-SiO2 catalyst could be improved by the addition of an appropriate amount of CeO2 in the temperature range of 100–180°C. MnOx-CeO2/TiO2-SiO2 with 10 wt-% CeO2 showed the highest activity with 96 % NO conversion at 180°C.


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