Influence of Phosphorus Poisoning of Cu/SSZ‐13 Zeolite Catalysts on the SCR Performance
Abstract Herein, the influence of phosphorus poisoning on the catalytic performance of Cu/SSZ‐13 zeolite catalysts for NO x emission decrease was studied. We conducted a detailed analysis of catalyst activity and N₂ selectivity in both fresh and P‐poisoned states, employing a range of advanced physicochemical characterization methods and in situ analyses. Our findings reveal a dual effect of phosphorus addition: Although it decreases the free Cu 2+ species and specific surface area, leading to diminished SCR activity at low temperatures, it simultaneously reduces CuO x content, inhibiting nonselective NH 3 oxidation at high temperatures and ultimately enhancing SCR activity under those conditions. These insights highlight the complex role of phosphorus in moderating catalyst behavior.
Authors
- Hongtao Dang (ORCID: https://orcid.org/0009-0007-6294-9333)
- Kaiyou Shu
- Yuheng Yuan (ORCID: https://orcid.org/0009-0006-9146-133X)
- Zhihao Wei
- Jiangfeng Guo (ORCID: https://orcid.org/0000-0002-9216-1295)
- Zeren Ma (ORCID: https://orcid.org/0000-0002-6859-4891)
- Zhongqi Zhuang (ORCID: https://orcid.org/0009-0003-6820-0738)
- Bin Guan (ORCID: https://orcid.org/0000-0003-3210-9492)
- Wenbo Zeng (ORCID: https://orcid.org/0000-0002-1334-2726)
- Xuehan Hu (ORCID: https://orcid.org/0009-0002-6609-6351)
- Junyan Chen (ORCID: https://orcid.org/0000-0002-9327-4435)
- Sikai Zhao (ORCID: https://orcid.org/0000-0002-3607-3936)
- Zhen Huang (ORCID: https://orcid.org/0000-0003-2157-2916)
- Chenyu Zhu (ORCID: https://orcid.org/0000-0002-9574-0129)
- Yi Chao (ORCID: https://orcid.org/0009-0000-8830-5869)
- Yang He
- Chengze Xu
- Yuan Li (ORCID: https://orcid.org/0009-0002-6150-3675)
- Kuangyi Shi
Institutions
- Shanghai Jiao Tong University (CN)
Publication Details
- Journal
- Chemical Engineering & Technology
- Published
- 2025-01-22
- DOI
- https://doi.org/10.1002/ceat.202400124
- Primary Topic
- Catalytic Processes in Materials Science
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China