Inhibitory role of excessive NH3 in NH3-SCR on CeWOx at low temperatures

Kuo Liu; Yanlong Huo; Zidi Yan; Wenpo Shan; Hong He

doi:10.1039/D0CY00096E

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Inhibitory role of excessive NH₃ in NH₃-SCR on CeWO_x at low temperatures†

Kuo Liu,

^ab Yanlong Huo,^ad Zidi Yan,^ad Wenpo Shan

*^c and Hong He*^acd

Author affiliations

* Corresponding authors

^a State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
E-mail: honghe@rcees.ac.cn

^b Editorial Office of Journal of Environmental Sciences, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

^c Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
E-mail: wpshan@iue.ac.cn

^d University of Chinese Academy of Sciences, Beijing 100049, China

Abstract

An inhibitory role of excessive NH₃ at low temperatures in the selective catalytic reduction of NO_x with NH₃ over CeWO_x was revealed and studied comprehensively, both in the presence and absence of H₂O. For the first time, an inhibitory effect of NH₃ on NO adsorption over CeWO_x has been found.

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Article information

DOI: https://doi.org/10.1039/D0CY00096E
Article type: Communication
Submitted: 19 Jan 2020
Accepted: 11 Mar 2020
First published: 12 Mar 2020

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Catal. Sci. Technol., 2020,10, 2758-2762

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Inhibitory role of excessive NH₃ in NH₃-SCR on CeWO_x at low temperatures

K. Liu, Y. Huo, Z. Yan, W. Shan and H. He, Catal. Sci. Technol., 2020, 10, 2758 DOI: 10.1039/D0CY00096E

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