Valence state of hydrogen in hydrides of intermetallic compounds

The experimental data on the mechanism of hydride dispersion of intermetallic compounds of the LaNi5 type and the crystal structures of hydride phases based on these compounds were analyzed. A new approach was suggested and substantiated, which allows one to consider hydride dispersion as a result of a redox process associated with the formation of Hδ− hydride ions at concentrations of hydrogen in the solid hydrideCH>-CHcr. The value ofCHcr is determined by the redox potential of the reaction Hδ++Mδ−⇌Hδ′−+Mδ′+.