Issue 69, 2016, Issue in Progress

The effect of Ce on a high-efficiency CeO2/WO3–TiO2 catalyst for the selective catalytic reduction of NOx with NH3

Abstract

In this study, W0.1TiOx and CeaW0.1TiOx (a = 0.1, 0.2, 0.5, 1.0) catalysts were prepared by a novel stepwise precipitation approach. The CeaW0.1TiOx catalysts showed much better activities and N2 selectivity than W0.1TiOx. Particularly, the Ce0.2W0.1TiOx (CeO2/WO3–TiO2) catalyst showed excellent catalytic performance in a broad temperature range from 200 to 450 °C, under a high GHSV condition of 400 000 h−1. Characterizations revealed that the novel preparation approach can achieve highly dispersed Ce species on the surface of the catalyst, and the Ce species could induce enhanced charge imbalance, superior redox functions, and outstanding adsorption and activation properties for NOx and NH3, which is the main reason for the highly efficient NOx abatement capability of the CeO2/WO3–TiO2 catalyst.

Graphical abstract: The effect of Ce on a high-efficiency CeO2/WO3–TiO2 catalyst for the selective catalytic reduction of NOx with NH3

Article information

Article type
Paper
Submitted
10 Mar 2016
Accepted
02 Jul 2016
First published
04 Jul 2016

RSC Adv., 2016,6, 64803-64810

The effect of Ce on a high-efficiency CeO2/WO3–TiO2 catalyst for the selective catalytic reduction of NOx with NH3

Y. Geng, H. Huang, X. Chen, H. Ding, S. Yang, F. Liu and W. Shan, RSC Adv., 2016, 6, 64803 DOI: 10.1039/C6RA06392F

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