Recently, Prof. Ping Chen's group found that NH₃synthesis under mild reaction conditions can be achieved at an unprecedentedly high rate over a new set of TM-LiH catalysts. The activation of N₂, H₂and the subsequent hydrogenation of N are carried out separately over the two reactive centers, i.e., TM and LiH, respectively, so that the the scaling relations on TM can be "broken." This work has been published in Nature Chemistry (2017, 9, 64-70).