Exploring the Nanosize Effect of Mordenite Zeolites on Their Performance in the Removal of NOx

Jingyan Zhang; Fuyan Liu; Jian Liang; Hui Yu; Wenming Liu; Xiang Wang; Honggen Peng; Peng Wu

doi:10.1021/acs.iecr.9b00353

Exploring the Nanosize Effect of Mordenite Zeolites on Their Performance in the Removal of NO_x

Jingyan Zhang
, Fuyan Liu
, Jian Liang
, Hui Yu
, Wenming Liu
, Xiang Wang
, Honggen Peng^*
, Peng Wu

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

Nanchang University

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Herein, the nanosized MOR zeolites were applied for selective catalytic reduction of NOx with NH3, and the effect of particle size on catalytic performance was studied in detail. Accordingly, three kinds of Cu-MOR with different particle sizes (0.23, 0.96, and 2.20 μm) were prepared and used for removing NOx from diesel exhaust. Our results demonstrated that Cu-MOR-0.23 with the minimal particle size had the best catalytic performance. Decreasing the particle size can effectively shorten the length of the C axis (12-MR channel), which is beneficial for the diffusion of substrates and products. This advantage was also verified by the Weisz-Prater criterion that the Cu-MOR with the smallest particle size has the least hindered diffusion of the mass transportation. Our work provides a new approach for promoting the catalytic performance of conventional cheaper catalysts used in the removal of NOx from diesel exhaust.

Original language	English
Pages (from-to)	8625-8635
Number of pages	11
Journal	Industrial and Engineering Chemistry Research
Volume	58
Issue number	20
DOIs	https://doi.org/10.1021/acs.iecr.9b00353
State	Published - 22 May 2019

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title = "Exploring the Nanosize Effect of Mordenite Zeolites on Their Performance in the Removal of NOx",

abstract = "Herein, the nanosized MOR zeolites were applied for selective catalytic reduction of NOx with NH3, and the effect of particle size on catalytic performance was studied in detail. Accordingly, three kinds of Cu-MOR with different particle sizes (0.23, 0.96, and 2.20 μm) were prepared and used for removing NOx from diesel exhaust. Our results demonstrated that Cu-MOR-0.23 with the minimal particle size had the best catalytic performance. Decreasing the particle size can effectively shorten the length of the C axis (12-MR channel), which is beneficial for the diffusion of substrates and products. This advantage was also verified by the Weisz-Prater criterion that the Cu-MOR with the smallest particle size has the least hindered diffusion of the mass transportation. Our work provides a new approach for promoting the catalytic performance of conventional cheaper catalysts used in the removal of NOx from diesel exhaust.",

author = "Jingyan Zhang and Fuyan Liu and Jian Liang and Hui Yu and Wenming Liu and Xiang Wang and Honggen Peng and Peng Wu",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

year = "2019",

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day = "22",

doi = "10.1021/acs.iecr.9b00353",

language = "英语",

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T1 - Exploring the Nanosize Effect of Mordenite Zeolites on Their Performance in the Removal of NOx

AU - Zhang, Jingyan

AU - Liu, Fuyan

AU - Liang, Jian

AU - Yu, Hui

AU - Liu, Wenming

AU - Wang, Xiang

AU - Peng, Honggen

AU - Wu, Peng

PY - 2019/5/22

Y1 - 2019/5/22

N2 - Herein, the nanosized MOR zeolites were applied for selective catalytic reduction of NOx with NH3, and the effect of particle size on catalytic performance was studied in detail. Accordingly, three kinds of Cu-MOR with different particle sizes (0.23, 0.96, and 2.20 μm) were prepared and used for removing NOx from diesel exhaust. Our results demonstrated that Cu-MOR-0.23 with the minimal particle size had the best catalytic performance. Decreasing the particle size can effectively shorten the length of the C axis (12-MR channel), which is beneficial for the diffusion of substrates and products. This advantage was also verified by the Weisz-Prater criterion that the Cu-MOR with the smallest particle size has the least hindered diffusion of the mass transportation. Our work provides a new approach for promoting the catalytic performance of conventional cheaper catalysts used in the removal of NOx from diesel exhaust.

AB - Herein, the nanosized MOR zeolites were applied for selective catalytic reduction of NOx with NH3, and the effect of particle size on catalytic performance was studied in detail. Accordingly, three kinds of Cu-MOR with different particle sizes (0.23, 0.96, and 2.20 μm) were prepared and used for removing NOx from diesel exhaust. Our results demonstrated that Cu-MOR-0.23 with the minimal particle size had the best catalytic performance. Decreasing the particle size can effectively shorten the length of the C axis (12-MR channel), which is beneficial for the diffusion of substrates and products. This advantage was also verified by the Weisz-Prater criterion that the Cu-MOR with the smallest particle size has the least hindered diffusion of the mass transportation. Our work provides a new approach for promoting the catalytic performance of conventional cheaper catalysts used in the removal of NOx from diesel exhaust.

UR - https://www.scopus.com/pages/publications/85066148825

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DO - 10.1021/acs.iecr.9b00353

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VL - 58

SP - 8625

EP - 8635

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 20

ER -

Exploring the Nanosize Effect of Mordenite Zeolites on Their Performance in the Removal of NO_x

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