Highly efficient NOx purification in alternating lean/rich atmospheres over non-platinic mesoporous perovskite-based catalyst K/LaCoO3

Jinsheng Ye; Yifu Yu; Ming Meng; Zheng Jiang; Tong Ding; Shuo Zhang; Yuying Huang

doi:10.1039/C3CY00155E

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Highly efficient NO_xpurification in alternating lean/rich atmospheres over non-platinic mesoporous perovskite-based catalyst K/LaCoO₃†

Jinsheng Ye,^a Yifu Yu,^a Ming Meng,*^a Zheng Jiang,^b Tong Ding,*^a Shuo Zhang^b and Yuying Huang^b

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* Corresponding authors

^a Department of Catalysis Science & Technology, School of Chemical Engineering & Technology, Tianjin university, Tianjin 300072, P. R. China
E-mail: mengm@tju.edu.cn
Fax: +86 22 2789 2275
Tel: +86 22 2789 2275

^b Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, P. R. China

Abstract

A mesoporous perovskite, LaCoO₃, with a high specific surface area of 75 m² g⁻¹ was synthesized by a nano-casting method. Its related NO_x storage/reduction catalyst K/LaCoO₃, which contains no noble metals, exhibits excellent de-NO_x performance under alternating lean/rich conditions, showing a high NO_x reduction efficiency of 97.0% and a high NO_x to N₂ selectivity of 97.3%.

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Article information

DOI: https://doi.org/10.1039/C3CY00155E
Article type: Communication
Submitted: 06 Mar 2013
Accepted: 06 Apr 2013
First published: 09 Apr 2013

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Catal. Sci. Technol., 2013,3, 1915-1918

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Highly efficient NO_x purification in alternating lean/rich atmospheres over non-platinic mesoporous perovskite-based catalyst K/LaCoO₃

J. Ye, Y. Yu, M. Meng, Z. Jiang, T. Ding, S. Zhang and Y. Huang, Catal. Sci. Technol., 2013, 3, 1915 DOI: 10.1039/C3CY00155E

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Catalysis Science & Technology