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<p>Against the backdrop of accelerated industrialization and urbanization, the combustion of fossil fuels has led to a significant increase in air pollutant emissions in the environment. Due to its excellent catalytic activity and environmental characteristics, cerium-based catalysts are widely used in flue gas denitrification in coal-fired power plants, steel manufacturing, and chemical industries. This article systematically analyzes different types of cerium-based oxide catalysts and elucidates their excellent performance and reaction mechanism in SCR (Selective Catalytic Reduction) reactions. Meanwhile, this article further investigates the influence of preparation methods of cerium-based catalysts on their catalytic performance. Intended to provide valuable resources for the development of cerium-based catalysts with better performance. In addition, this article explores the effects of metals and sulfur dioxide on the activity of cerium-based catalysts and improves their anti-poisoning performance through methods such as metal doping and structural optimization. Finally, to improve the application of cerium-based catalysts in various fields, three suggestions have been put forward. Future research should focus on analyzing the intermediates of NH<sub>3</sub> denitrification reaction, exploring the synergistic mechanism between active substances and additives or carriers at low temperatures, and simulating poisoning reactions in real applications. I hope to provide broad ideas and application prospects for the innovative development of cerium-based catalysts with better comprehensive performance.</p>

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The Performance and Deactivation of Selective Catalytic Reduction of NOx with NH3 Over Cerium-based Catalysts: A Review

  • 期刊论文

  • 发表日期：

    2025年4月10日

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  • Jianbin Luo,
  • Zongfa Jia,
  • Yukai Lan,
  • Song Xu,
  • Guiguang Chen,
  • Haiguo Zhang,
  • Chunmei Jiang

摘要

Against the backdrop of accelerated industrialization and urbanization, the combustion of fossil fuels has led to a significant increase in air pollutant emissions in the environment. Due to its excellent catalytic activity and environmental characteristics, cerium-based catalysts are widely used in flue gas denitrification in coal-fired power plants, steel manufacturing, and chemical industries. This article systematically analyzes different types of cerium-based oxide catalysts and elucidates their excellent performance and reaction mechanism in SCR (Selective Catalytic Reduction) reactions. Meanwhile, this article further investigates the influence of preparation methods of cerium-based catalysts on their catalytic performance. Intended to provide valuable resources for the development of cerium-based catalysts with better performance. In addition, this article explores the effects of metals and sulfur dioxide on the activity of cerium-based catalysts and improves their anti-poisoning performance through methods such as metal doping and structural optimization. Finally, to improve the application of cerium-based catalysts in various fields, three suggestions have been put forward. Future research should focus on analyzing the intermediates of NH3 denitrification reaction, exploring the synergistic mechanism between active substances and additives or carriers at low temperatures, and simulating poisoning reactions in real applications. I hope to provide broad ideas and application prospects for the innovative development of cerium-based catalysts with better comprehensive performance.