Behavior of Lithium Amide Under Argon Plasma

作者：Jiaqi Wen, Wen Hong, Han Wu, Liang Yang, Yeqin Guan, Yongli Cai, Wenbo Gao, Qianru Wang, Shaoqian Zhang, Jianping Guo, Ping Chen · 发表于：ChemSusChem · 年份：2024 · DOI：10.1002/cssc.202400221 · 被引用次数：4 · 研究领域：Hydrogen Storage and Materials、Ammonia Synthesis and Nitrogen Reduction、Muon and positron interactions and applications

Abstract Alkali and alkaline earth metal amides are a type of functional materials for hydrogen storage, thermal energy storage, ion conduction, and chemical transformations such as ammonia synthesis and decomposition. The thermal chemistry of lithium amide (LiNH 2 ), as a simple but representative alkali or alkaline earth metal amide, has been well studied previously encouraged by its potentials in hydrogen storage. In comparison, little is known about the interaction of plasma and LiNH 2 . Herein, we report that the plasma treatment of LiNH 2 in an Ar flow under ambient temperature and pressure gives rise to distinctly different reaction products and reaction pathway from that of the thermal process. We found that plasma treatment of LiNH 2 leads to the formation of Li colloids, N 2 , and H 2 as observed by UV‐vis absorption, EPR, and gas products analysis. Inspired by this very unique interaction between plasma and LiNH 2 , a chemical loop for ammonia decomposition to N 2 and H 2 mediated by LiNH 2 was proposed and demonstrated.