单原子催化剂在电催化合成氨的研究进展

Research Progress on Single-Atom Catalysts in Electrocatalytic Ammonia synthesis

电化学还原氨(NRR)作为能够代替传统Haber-Bosch工艺的一种充满前途的方法,在近些年来被科学家们关注。但是这种方法的缺点是产率和法拉第效率低。因此,有效的合成方法以及高效的催化剂对其实际应用至关重要。在已报到的文献中,单原子催化剂(SACs)的有效原子利用和独特的配位构型表现出了显著的优势,这对优化NRR反应提供了可能性。本文在总结了电化学合成氨的机理和合成方法。同时研究了单原子催化剂的合成以及讨论了近年来单原子催化剂的应用与发展。最后,我们进一步提出了改进电催化NRR还原技术的挑战和展望。

Electrochemical reduction of ammonia(NRR) as a promising method to replace the traditional Haber-Bosch process has attracted the attention of scientists in recent years. But the disadvantage of this method is the low yield and Faradaic efficiency. Therefore, efficient synthetic methods as well as efficient catalysts are crucial for their practical applications. In the reported literature, the efficient atom utilization and unique coordination configuration of single-atom catalysts(SACs) have shown significant advantages, which provide the possibility to optimize the NRR reaction. The mechanism and synthesis method of electrochemical ammonia synthesis were summarized. At the same time, the synthesis of single-atom catalysts was studied and the application and development of single-atom catalysts in recent years were discussed. Finally, the challenges and prospects were presented for improving electrocatalytic NRR reduction techniques.