Wu Han, Ma Kai, Wen Jiaqi, Yang Liang, Guan Yeqin, Wang Qianru, Gao Wenbo, Guo Jianping, Chen Ping
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
Chem Commun (Camb). 2024 Sep 24;60(77):10760-10763. doi: 10.1039/d4cc03866e.
The chemical behaviors of alkali and alkaline earth metal hydrides including LiH, KH, MgH, CaH, and BaH under nitrogen plasma differ significantly from one another, exhibiting an ammonia production trend that contrasts with that observed under thermal conditions. A prominent feature of KH is its ability to facilitate plasma-assisted N fixation without generating H byproduct, showing high atomic economy in utilization of hydride ions for N reduction.
锂氢（LiH）、氢化钾（KH）、氢化镁（MgH）、氢化钙（CaH）和氢化钡（BaH）等碱金属和碱土金属氢化物在氮等离子体下的化学行为彼此显著不同，呈现出与热条件下观察到的情况相反的产氨趋势。氢化钾的一个显著特点是它能够促进等离子体辅助的固氮作用，而不产生氢副产物，在利用氢负离子进行氮还原方面显示出高原子经济性。
