Regulation of Si/Al ratios of Fe-SSZ-13: Impact on NH3-SCR activity and hydrothermal stability

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成果类型：

期刊论文

作者：

Ming, Shujun;Yu, Siqi;Pang, Lei;Li, Xinnan;Wang, Libao;...

通讯作者：

Li, T;Guo, YB

作者机构：

[Wang, Libao; Li, Jianjian; Ming, Shujun; Au, Chaktong; Yu, Siqi] Huanggang Normal Univ, Sch Chem & Chem Engn, Hubei Key Lab Proc & Applicat Catalyt Mat, Huangzhou 438000, Peoples R China.

[Li, Xinnan; Li, T; Li, Tao] Huazhong Univ Sci & Technol, Key Lab Mat Chem Energy Convers & Storage, Hubei Key Lab Mat Chem & Serv Failure, Sch Chem & Chem Engn,Minist Educ, Wuhan 430074, Peoples R China.

[Guo, Yanbing; Chen, Wei; Guo, YB] Cent China Normal Univ, Inst Environm & Appl Chem, Coll Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China.

[Pang, Lei; Yang, Fan] DongFeng Trucks R&D Ctr, Wuhan 430056, Peoples R China.

[Tian, Shidong; Li, Kelun] Shaanxi Coal & Chem Ind Technol Res Inst Co Ltd, Xian 710100, Peoples R China.

通讯机构：

[Guo, YB ] C

[Li, T ] H

Huazhong Univ Sci & Technol, Key Lab Mat Chem Energy Convers & Storage, Hubei Key Lab Mat Chem & Serv Failure, Sch Chem & Chem Engn,Minist Educ, Wuhan 430074, Peoples R China.

Cent China Normal Univ, Inst Environm & Appl Chem, Coll Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China.

语种：

英文

关键词：

NH3-SCR;Fe-SSZ-13;Si/Al ratio;Fe species;Hydrothermal stability

期刊：

Applied Surface Science

ISSN：

0169-4332

年：

2024

卷：

654

页码：

159492

DOI：

10.1016/j.apsusc.2024.159492

基金类别：

National Natural Science Foundation of China [21473064]; Huanggang Normal University [2042021043, 204202315004]; Huizhou Ruihe Environmental Protection Technology Co., Ltd. [20120230005]; Analytical and Testing Center, Huazhong University of Science and Technology, Wuhan, China; Shaanxi Coal and Chemical Industry Technology Research Institute Co., Ltd., Xi'an

机构署名：

本校为通讯机构

院系归属：

化学学院

摘要：

Fe-SSZ-13 (Fe -13) is an effectual catalyst for NOx abatement with extensive application potential in the selective reduction of NOx by NH3 (NH3-SCR). It is necessary to further research and expand the fundamental knowledge of Fe -13 catalysts. In this research, Fe -13 zeolites possessing Si/Al ratios of 6.9, 12.0, and 17.5 were prepared. Fe13(6.9) showed excellent catalytic activity because it had a larger number of isolated Fe3+ ions and welldispersed Fe species. Upon hydrothermal aging, the Fe -13(6.9) catalyst diminished significantly in catalytic activity. Among the three, Fe -13(17.5) ex...

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Regulation of Si/Al ratios of Fe-SSZ-13: Impact on NH3-SCR activity and hydrothermal stability

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