A CeO2-MnOx core-shell catalyst for low-temperature NH3-SCR of NO

被引：80

作者：

Li, Shihui ^{[1
]}

Huang, Bichun ^{[1
,2
,3
]}

Yu, Chenglong ^{[1
]}

机构：

[1] South China Univ Technol, Sch Environm & Energy, Guangzhou Higher Educ Mega Ctr, Guangzhou 510006, Guangdong, Peoples R China

[2] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Guangdong Prov Key Lab Atmospher Environm & Pollu, Guangzhou 510006, Guangdong, Peoples R China

[3] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Key Lab Pollut Control & Ecosyst Restorat Ind Clu, Minist Educ, Guangzhou 510006, Guangdong, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2017年 / 98卷

基金：

中国国家自然科学基金;

关键词：

NH3-SCR; CeO2-MnOx; SO2-tolerance; Core-shell structure; SCR; REDUCTION; CEO2; NANOPARTICLES; REMOVAL; TITANIA; OXIDES; OXYGEN;

D O I：

10.1016/j.catcom.2017.04.046

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A CeO2-MnOx catalyst with a core-shell structure was prepared by a chemical deposition method and tested towards the low-temperature selective catalytic reduction of NO by NH3. The catalyst with a molar ratio of CeO2/MnOx = 0.6, exhibited a relatively high conversion values of NO in the 110-220 degrees C range and good resistance to SO2 and H2O at the space velocity of 40,000 h(-1). The excellent catalytic performance could be attributed to the presence of high crystalline alpha-MnO2, as well as high concentrations of Mn4+ and Ce3+. Notably, CeO2-MnOx catalyst showed relatively good resistance to SO2 due to its core-shell structure.

引用

页码：47 / 51

页数：5

共 50 条

[31] Design of practical Ce/CoMnAl-LDO catalyst for low-temperature NH3-SCR
Zhang, Xinyu
Yan, Qinghua
Wang, Qiang
CATALYSIS COMMUNICATIONS, 2020, 142
[32] The effect of dopants (Fe, Al) on the low-temperature activity and SO2 tolerance in solvothermally synthesized MnOx NH3-SCR catalysts
Li, Huirong
Schill, Leonhard
Gao, Qi
Mossin, Susanne
Riisager, Anders
FUEL, 2024, 358
[33] Enhanced low-temperature NH3-SCR performance of Ce/TiO2 modified by Ho catalyst
Zhang, Ting-ting
Yan, Li-min
ROYAL SOCIETY OPEN SCIENCE, 2019, 6 (03):
[34] Promotion of Ilmenite Blending on the Antisulfur Performance of the Lithium-Silicon-Powder-Derived Low-Temperature NH3-SCR Catalyst
Wang, Runqing
Pu, Yijuan
Yang, Lin
Yao, Lu
Dai, Zhongde
Jia, Charles Q.
Jiang, Wenju
Wang, Bangda
ENERGY & FUELS, 2023, 37 (24) : 19747 - 19757
[35] Enhancing low-temperature NH3-SCR performance of FeeMn/CeO2 catalyst by Al2O3 modification
Li, Lulu
Ji, Jiawei
Tan, Wei
Song, Wang
Wang, Xin
Wei, Xiaoqian
Guo, Kai
Zhang, Wanyu
Tang, Changjin
Dong, Lin
JOURNAL OF RARE EARTHS, 2022, 40 (09) : 1454 - 1461
[36] A superior MnNiAlOx catalyst for low-temperature NH3-SCR: Performance enhancement and denitration mechanism
Luan, Xinru
Yang, Zhuo
Zhai, Yujia
Wang, Mengmeng
Liu, Wei
Wang, Liguo
Wang, Zhongpeng
FUEL, 2024, 376
[37] Effects of atmospheres and precursors on MnOx/TiO2 catalysts for NH3-SCR at low temperature
Fang De
He Feng
Xie Junlin
Fu Zhengbing
Chen Junfu
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2013, 28 (05): : 888 - 892
[38] Promotion effect and mechanism of MnOx doped CeO2 nano-catalyst for NH3-SCR
Yang, Chen
Yang, Jian
Jiao, Qingrui
Zhao, Dong
Zhang, Yuxin
Liu, Lan
Hu, Guang
Li, Jiangling
CERAMICS INTERNATIONAL, 2020, 46 (04) : 4394 - 4401
[39] Low-temperature Denitration Mechanism of NH3-SCR over Fe/AC Catalyst
Yang, Zhengyu
Huang, Bangfu
Zhang, Guifang
Dai, Meng
Wen, Zhenjing
Li, Wanjun
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2023, 38 (03): : 475 - 484
[40] Preparation, Characterization and Low-Temperature NH3-SCR Activity of MnOx/SAPO-11 Catalysts
Liu Xiao-Qing
Li Shi-Hui
Sun Meng-Ting
Yu Cheng-Long
Huang Bi-Chun
ACTA PHYSICO-CHIMICA SINICA, 2016, 32 (05) : 1236 - 1246

← 1 2 3 4 5 →