The article "Challenges and Perspectives of Environmental Catalysis for NOx Reduction" by Yanqi Chen et al. discusses the advancements and challenges in environmental catalysis, particularly focusing on the selective catalytic reduction (SCR) of nitrogen oxides (NOx) using ammonia (NH3). The authors highlight the importance of NH3-SCR in reducing NOx emissions from stationary and mobile sources, but also point out the limitations of traditional catalysts such as V2O5-WO3(MoO3)/TiO2 and chabazite (CHA) structured zeolites. These catalysts struggle to meet the requirements of high activity at ultra-low temperatures and robust resistance to various poisons like SO2, HCl, phosphorus, alkali metals, and heavy metals. Additionally, the presence of volatile organic compounds (VOCs) in exhaust gases further complicates the reduction of NOx. The article outlines several strategies to enhance the performance of NH3-SCR catalysts, including the strategic manipulation of surface acidity and redox properties, the establishment of protective sites and confined structures, and the development of synergistic catalytic elimination technologies. These strategies aim to improve low-temperature activity, antipoisoning capabilities, and the efficiency of NOx and VOCs reduction. The authors also discuss the challenges posed by the evolving energy landscape and the use of renewable fuels, emphasizing the need for catalysts that can operate effectively under more complex conditions. The article provides a comprehensive overview of the current state of NH3-SCR technology, the challenges it faces, and the innovative approaches being explored to overcome these challenges. It concludes with a discussion on potential future advancements in environmental catalysis for NOx reduction, highlighting the importance of further research and development in this field.The article "Challenges and Perspectives of Environmental Catalysis for NOx Reduction" by Yanqi Chen et al. discusses the advancements and challenges in environmental catalysis, particularly focusing on the selective catalytic reduction (SCR) of nitrogen oxides (NOx) using ammonia (NH3). The authors highlight the importance of NH3-SCR in reducing NOx emissions from stationary and mobile sources, but also point out the limitations of traditional catalysts such as V2O5-WO3(MoO3)/TiO2 and chabazite (CHA) structured zeolites. These catalysts struggle to meet the requirements of high activity at ultra-low temperatures and robust resistance to various poisons like SO2, HCl, phosphorus, alkali metals, and heavy metals. Additionally, the presence of volatile organic compounds (VOCs) in exhaust gases further complicates the reduction of NOx. The article outlines several strategies to enhance the performance of NH3-SCR catalysts, including the strategic manipulation of surface acidity and redox properties, the establishment of protective sites and confined structures, and the development of synergistic catalytic elimination technologies. These strategies aim to improve low-temperature activity, antipoisoning capabilities, and the efficiency of NOx and VOCs reduction. The authors also discuss the challenges posed by the evolving energy landscape and the use of renewable fuels, emphasizing the need for catalysts that can operate effectively under more complex conditions. The article provides a comprehensive overview of the current state of NH3-SCR technology, the challenges it faces, and the innovative approaches being explored to overcome these challenges. It concludes with a discussion on potential future advancements in environmental catalysis for NOx reduction, highlighting the importance of further research and development in this field.