Effect of treatment atmosphere on the vanadium species of V/TiO2 catalysts for the selective catalytic reduction of NOx with NH3

Zhihua Lian; Shaohui Xin; Na Zhu; Qiang Wang; Jun Xu; Yan Zhang; Wenpo Shan; Hong He

doi:10.1039/C9CY01888C

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Effect of treatment atmosphere on the vanadium species of V/TiO₂ catalysts for the selective catalytic reduction of NO_x with NH₃†

Zhihua Lian,

^a Shaohui Xin,^bc Na Zhu,^ac Qiang Wang,^b Jun Xu,

^b Yan Zhang,^a Wenpo Shan*^a and Hong He^acd

Author affiliations

* Corresponding authors

^a Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
E-mail: wpshan@iue.ac.cn
Tel: +86 592 6190563

^b State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

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

^d State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

Abstract

Different treatment atmospheres, including oxidizing, inert and reducing conditions, all affected vanadium species and deactivated the V/TiO₂ catalyst to some extent in NH₃-SCR. The amount of active polymeric vanadyl species decreased in the following sequence: V/Ti > V/Ti–O₂ > V/Ti–N₂ > V/Ti–NH₃.

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Article information

DOI: https://doi.org/10.1039/C9CY01888C
Article type: Communication
Submitted: 19 Sep 2019
Accepted: 02 Dec 2019
First published: 02 Dec 2019

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Catal. Sci. Technol., 2020,10, 311-314

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Effect of treatment atmosphere on the vanadium species of V/TiO₂ catalysts for the selective catalytic reduction of NO_x with NH₃

Z. Lian, S. Xin, N. Zhu, Q. Wang, J. Xu, Y. Zhang, W. Shan and H. He, Catal. Sci. Technol., 2020, 10, 311 DOI: 10.1039/C9CY01888C

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