HALOGEN DOPED Li3N COMPOSITIONS CAPABLE OF ABSORPTION AND DESORPTION OF HYDROGEN

摘要

A composition capable of absorbing and desorbing hydrogen comprising Li₃N and a halogen, such as Cl₂, or a halogen-containing compound where the halogen is covalently bound or anionic. The process for doping Li₃N is performed by milling a mixture Of Li₃N and the halogen or halogen-containing compound. Examples of halogen-containing compounds include LiCl, NaCl, KCl, MgCl₂, AlCl₃, AlF₃, TiCl₄, LiBr, LiF, NH₄Cl, CCl₄, CaCl₂, etc. The hydrogen storage ability of these compounds is reversible. The compounds can be used repeatedly in applications where hydrogen supply is needed.