Deactivation of Pd/SSZ-13 passive NOx adsorber from the perspectives of phosphorus poisoning and hydrothermal aging

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期刊论文

作者：

Li, Dan;Meng, Ying;Hao, Dapeng;Ding, Qianzhao;Pang, Lei;...

通讯作者：

Yu, Jihong(jihong@jlu.edu.cn)

作者机构：

[Li, Dan; Meng, Ying; Li, Tao; Ding, Qianzhao] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Minist Educ, Key Lab Mat Chem Energy Convers & Storage,Hubei Ke, Wuhan 430074, Peoples R China.

[Yang, Guoju; Yu, Jihong; Hao, Dapeng] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China.

[Pang, Lei] Dongfeng Trucks R&D Ctr, Wuhan 430056, Peoples R China.

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

[Yu, Jihong; Hao, Dapeng] Jilin Univ, Int Ctr Future Sci, Changchun 130012, Peoples R China.

通讯机构：

[Jihong Yu] S

[Tao Li] K

Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China<&wdkj&>State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China<&wdkj&>International Center of Future Science, Jilin University, Changchun 130012, PR China

语种：

英文

关键词：

Cold-start application;Hydrothermal aging;Passive NOx adsorber (PNA);Pd/SSZ-13;Phosphorus poisoning

期刊：

Chemical Engineering Journal

ISSN：

1385-8947

年：

2022

卷：

446

页码：

136779

DOI：

10.1016/j.cej.2022.136779

基金类别：

Acknowledgments We acknowledge the funding supported by the National Natural Science Foundation of China (Grant 21920102005, 21835002, and 21621001) for supporting this work. G.Y. acknowledges Natural Science Foundation of Chongqing of China (Grant cstc2021jcyj-msxmX0491). We also thank the Analysis and Testing Center, Huazhong University of Science and Technology, for the characterization of materials.

机构署名：

本校为其他机构

院系归属：

化学学院

摘要：

Phosphorus is one of the typical derivatives that cause irreversible deactivation of passive NOx adsorber (PNA). In this work, the deactivation effects of phosphorus on Pd/SSZ-13 were investigated in combination with hydrothermal aging treatment to gain deeper insights into phosphorus-induced deactivation. It was found that phosphorus decreased the porosity and acidity of Pd/SSZ-13 and the deactivation behavior mainly resulted from the decrease of active sites. Specifically, the isolated Pd sites (Pd2+ and [Pd(OH)]+) were poisoned by phosphorus...

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Deactivation of Pd/SSZ-13 passive NOx adsorber from the perspectives of phosphorus poisoning and hydrothermal aging

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