LaNi5 related AB5 compounds: Structure, properties and applications

This paper is a comprehensive review of the properties LaNi5 derivatives and other AB5 compounds with CaCu5 crystal structure (A = Y, lanthanide, Th B =transition metal, Al, Ge, Si, Sn) their applications. The structures intermetallic are described considering chemical composition off-stoichiometry. Same approach conducted for metallic hydrides formed by direct reaction dihydrogen intermetallic. thermodynamic sorption presented regarding equilibrium pressure reversibility. In second step, outstanding applications given focusing first on magnetic electrochemical energy storage. Finally, uses such as gas storage, heat exchange, compression or separation purification highlighted showing tremendous possibilities offered this class materials.