It is important and necessary to minimize NO_x pollutant released into the atmosphere owing to the harmful environmental and health effects brought by NO_x emission. Many techniques are available to reduce NO_x emission, among of them, Selective Catalytic Reduction (SCR) is considered as one of the most efficient techniques. Conventional SCR systems involve ammonia (NH₃) or urea (CO(NH₂)₂) as a reducing reagent to reduce NO_x to N₂ and H₂O at high temperatures 300–400 °C. Research on developing novel low‐temperature catalysts (LTC) for SCR of NO_x still remains of interest. This work reviewed and compared conventional SCR catalysts with newly emerging Metal‐Organic‐Frame (MOFs) materials as potential alternatives for SCR catalysts.

中文翻译：

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用于NOx选择性催化还原（SCR）的常规材料和新材料

这是重要和必要的，以尽量减少NO _X污染物释放到由于由NO所带来的有害环境和健康影响的大气_X排放。许多技术可减少NO _X排放，他们之中，选择性催化还原（SCR）被认为是最有效的技术之一。常规SCR系统包括氨（NH ₃）或尿素（CO（NH ₂）₂），以降低还原试剂NO _X为N ₂和H ₂ O不连到高温300-400℃。开发用于NO _x SCR的新型低温催化剂（LTC）的研究仍然值得关注。这项工作对常规SCR催化剂与新兴的金属有机框架（MOF）材料进行了比较，并将其作为SCR催化剂的潜在替代品。