Single-atom catalysts (SACs) have gained more and more attention due to their unique properties and behavior in the field of environmental catalysis. Recently, the number of reports on application of SACs in automobile and stationary emission control is growing. Especially, utilization of SACs in the removal of nitrogen oxides (NO) has attracted many researchers. This review summarizes various SACs used in selective catalytic reduction (SCR) of NO by NH (NH–SCR), carbon monoxide (CO–SCR), hydrocarbons (HC–SCR), and H (H–SCR). The challenges in application of SACs in the field of NO emission control and suggestion for future research are also provided.

中文翻译：

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用于氮氧化物排放控制的单原子催化剂

单原子催化剂（SAC）因其独特的性能和行为在环境催化领域受到越来越多的关注。最近，关于SAC在汽车和固定排放控制中应用的报道越来越多。特别是，利用SAC去除氮氧化物（NO）吸引了许多研究人员。本综述总结了用于通过 NH (NH–SCR)、一氧化碳 (CO–SCR)、碳氢化合物 (HC–SCR) 和 H (H–SCR) 选择性催化还原 (SCR) NO 的各种 SAC。还提出了SAC在NO排放控制领域应用中面临的挑战以及对未来研究的建议。