Research status and outlook of molecular sieve NH3-SCR catalysts

Yuan, Yuheng; Guan, Bin; Chen, Junyan; Zhuang, Zhongqi; Zheng, Chunzheng; Zhou, Jiefei; Su, Tianxu; Zhu, Chenyu; Guo, Jiangfeng; Dang, Hongtao; Zhang, Yaoyao; Hu, Xuehan; Zhao, Sikai; Yi, Chao; Xu, Chengze; Xu, Bingyu; Zeng, Wenbo; He, Yang; Wei, Zhihao; Huang, Zhen

doi:10.1016/j.mcat.2024.113846

Molecular Catalysis

2024

DOI: 10.1016/j.mcat.2024.113846

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Research status and outlook of molecular sieve NH3-SCR catalysts

Yuheng Yuan,

Bin Guan,

Junyan Chen

et al.

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Influence of Catalyst Structural Remodelling on The Performance of NH₃‐SCR Reactions: A Mini Review

Liu,

Lv,

Wang

et al. 2024

ChemCatChem

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With the continuous expansion of industrial activities worldwide, industrial emissions of nitrogen oxides (NOx) pose a serious threat to both ecosystems and human health. Ammonia selective catalytic reduction of NO (NH3‐SCR) technology has emerged as the most effective means to reduce NOx emissions, and the development of catalysts is crucial for the successful implementation of this technology. In gas‐solid multiphase catalytic systems, the performance limitations of conventional catalysts can be effectively overcome by meticulously designing the nanostructures of the catalysts to achieve improved catalytic efficiency. In this review, the unique structural features of core‐shell structures, layered double hydroxide (LDHs), hollow nano spheres and nanotubes, along with their preparation processes, are systematically examined, beginning with the effects of structural changes on catalytic performance. Based on this review, the impact of structural modifications on the catalytic efficiency of the catalysts for the NH3‐SCR reaction and their anti‐poisoning performance were investigated. Ultimately, the influence of catalyst structural changes on the future design of catalysts is anticipated. This provides a robust scientific foundation for the conception of higher performance catalysts, paving the way for technological innovation and advancements in NOx emission reduction practices.

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Influence of Catalyst Structural Remodelling on The Performance of NH₃‐SCR Reactions: A Mini Review

Liu,

Lv,

Wang

et al. 2024

ChemCatChem

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Recent Advances in NO Reduction with NH3 and CO over Cu-Ce Bimetallic and Derived Catalysts

Liu,

Zhang

2024

Catalysts

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Sintering flue gas contains significant amounts of harmful gases, such as carbon monoxide and nitrogen oxides (NOx), which pose severe threats to the ecological environment and human health. Selective catalytic reduction (SCR) technology is widely employed for the removal of nitrogen oxides, with copper-cerium-based bimetallic catalysts and their derivatives demonstrating excellent catalytic efficiency in SCR reactions, primarily due to the significant synergistic effect between copper and cerium. This paper summarizes the main factors affecting the catalytic performance of Cu-Ce-based bimetallic catalysts and their derivatives in the selective catalytic reduction of ammonia and carbon monoxide. Key considerations include various preparation methods, doping of active components, and the effects of loading catalysts on different supports. This paper also analyzes the influence of surface oxygen vacancies, redox capacity, acidity, and specific surface area on catalytic performance. Additionally, the anti-poisoning performance and reaction mechanisms of the catalysts are discussed. Finally, the paper proposes strategies for designing high-activity and high-stability catalysts, considering the development prospects and challenges of Cu-Ce-based bimetallic catalysts and their derivatives, with the aim of providing theoretical guidance for optimizing Cu-Ce-based catalysts and promoting their industrial applications.

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Research status and outlook of molecular sieve NH3-SCR catalysts

Cited by 2 publications

References 232 publications

Influence of Catalyst Structural Remodelling on The Performance of NH₃‐SCR Reactions: A Mini Review

Influence of Catalyst Structural Remodelling on The Performance of NH₃‐SCR Reactions: A Mini Review

Recent Advances in NO Reduction with NH3 and CO over Cu-Ce Bimetallic and Derived Catalysts

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Resources

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Research status and outlook of molecular sieve NH3-SCR catalysts

Cited by 2 publications

References 232 publications

Influence of Catalyst Structural Remodelling on The Performance of NH3‐SCR Reactions: A Mini Review

Influence of Catalyst Structural Remodelling on The Performance of NH3‐SCR Reactions: A Mini Review

Recent Advances in NO Reduction with NH3 and CO over Cu-Ce Bimetallic and Derived Catalysts

Contact Info

Product

Resources

About

Influence of Catalyst Structural Remodelling on The Performance of NH₃‐SCR Reactions: A Mini Review

Influence of Catalyst Structural Remodelling on The Performance of NH₃‐SCR Reactions: A Mini Review