Desilication tuning of In/Hβ catalysts for sulfur- and steam-resistant CH4-SCR of NO

Jiuhu Zhao; Huiying Li; Yungang Wang; Rongshu Zhu; Senlin Sun; Jingwen Zhang; Chaolin Li; Mei Hong

doi:10.1016/j.catcom.2023.106619

Desilication tuning of In/Hβ catalysts for sulfur- and steam-resistant CH₄-SCR of NO

Jiuhu Zhao
, Huiying Li
, Yungang Wang
, Rongshu Zhu^*
, Senlin Sun
, Jingwen Zhang
, Chaolin Li
, Mei Hong

^*Corresponding author for this work

Harbin Institute of Technology Shenzhen
Peking University
Ltd.

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

10 Scopus citations

Abstract

Mesoporous In/Hβ-X series catalysts were prepared by desilication method with tetrapropylammonium hydroxide (TPAOH) and indium incorporation for selective catalytic reduction of NO with methane (CH₄-SCR). The post desilication treatment conditions for preparing In/Hβ-X were optimized. Etching time is the most important desilication parameter influencing the resulting CH₄-SCR performance of the catalyst. The In/Hβ-3 sample which was etched for 3 h presents the highest NO_x conversion, 22% higher than In/H-Beta counterparts using commercial microporous beta. Obvious analysis reveals that besides generating mesopores, controlled desilication can modulate the proportion of InO⁺ active sites and surface oxygen species, allowing more active sites to be exposed.

Original language	English
Article number	106619
Journal	Catalysis Communications
Volume	175
DOIs	https://doi.org/10.1016/j.catcom.2023.106619
State	Published - Feb 2023
Externally published	Yes

Keywords

CH-SCR
Desilication method
In/H-Beta catalysts
InO species
Mesoporous zeolites

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10.1016/j.catcom.2023.106619

Cite this

@article{91c20544ec5746d9a6f3cd59abaa906e,

title = "Desilication tuning of In/Hβ catalysts for sulfur- and steam-resistant CH4-SCR of NO",

abstract = "Mesoporous In/Hβ-X series catalysts were prepared by desilication method with tetrapropylammonium hydroxide (TPAOH) and indium incorporation for selective catalytic reduction of NO with methane (CH4-SCR). The post desilication treatment conditions for preparing In/Hβ-X were optimized. Etching time is the most important desilication parameter influencing the resulting CH4-SCR performance of the catalyst. The In/Hβ-3 sample which was etched for 3 h presents the highest NOx conversion, 22\% higher than In/H-Beta counterparts using commercial microporous beta. Obvious analysis reveals that besides generating mesopores, controlled desilication can modulate the proportion of InO+ active sites and surface oxygen species, allowing more active sites to be exposed.",

keywords = "CH-SCR, Desilication method, In/H-Beta catalysts, InO species, Mesoporous zeolites",

author = "Jiuhu Zhao and Huiying Li and Yungang Wang and Rongshu Zhu and Senlin Sun and Jingwen Zhang and Chaolin Li and Mei Hong",

note = "Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = feb,

doi = "10.1016/j.catcom.2023.106619",

language = "英语",

volume = "175",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Desilication tuning of In/Hβ catalysts for sulfur- and steam-resistant CH4-SCR of NO

AU - Zhao, Jiuhu

AU - Li, Huiying

AU - Wang, Yungang

AU - Zhu, Rongshu

AU - Sun, Senlin

AU - Zhang, Jingwen

AU - Li, Chaolin

AU - Hong, Mei

PY - 2023/2

Y1 - 2023/2

N2 - Mesoporous In/Hβ-X series catalysts were prepared by desilication method with tetrapropylammonium hydroxide (TPAOH) and indium incorporation for selective catalytic reduction of NO with methane (CH4-SCR). The post desilication treatment conditions for preparing In/Hβ-X were optimized. Etching time is the most important desilication parameter influencing the resulting CH4-SCR performance of the catalyst. The In/Hβ-3 sample which was etched for 3 h presents the highest NOx conversion, 22% higher than In/H-Beta counterparts using commercial microporous beta. Obvious analysis reveals that besides generating mesopores, controlled desilication can modulate the proportion of InO+ active sites and surface oxygen species, allowing more active sites to be exposed.

AB - Mesoporous In/Hβ-X series catalysts were prepared by desilication method with tetrapropylammonium hydroxide (TPAOH) and indium incorporation for selective catalytic reduction of NO with methane (CH4-SCR). The post desilication treatment conditions for preparing In/Hβ-X were optimized. Etching time is the most important desilication parameter influencing the resulting CH4-SCR performance of the catalyst. The In/Hβ-3 sample which was etched for 3 h presents the highest NOx conversion, 22% higher than In/H-Beta counterparts using commercial microporous beta. Obvious analysis reveals that besides generating mesopores, controlled desilication can modulate the proportion of InO+ active sites and surface oxygen species, allowing more active sites to be exposed.

KW - CH-SCR

KW - Desilication method

KW - In/H-Beta catalysts

KW - InO species

KW - Mesoporous zeolites

UR - https://www.scopus.com/pages/publications/85149741481

U2 - 10.1016/j.catcom.2023.106619

DO - 10.1016/j.catcom.2023.106619

M3 - 文章

AN - SCOPUS:85149741481

SN - 1566-7367

VL - 175

JO - Catalysis Communications

JF - Catalysis Communications

M1 - 106619

ER -

Desilication tuning of In/Hβ catalysts for sulfur- and steam-resistant CH₄-SCR of NO

Abstract

Keywords

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