[20p-C212-1~7] Hydrogen in oxides and its role

[20p-C212-6] Effect of controlling anion configuration for H^– conductive oxyhydrides on the conduction properties

〇Genki Kobayashi^1,2 (1.IMS, 2.SOKENDAI)

Keywords:Ion conductor, Oxyhydride, Solid Electrolyte

Hydride ions are suitable for fast ion conduction in solids due to their monovalence, adequate anion radius similar to O^2–, and large polarizability. Furthermore, the strong reducing properties with a standard redox potential of H^–/H₂ (-2.25 V) might be applied in electrochemical energy storage/conversion devices. In this presentation, we will report the effect of controlling anion configuration on the conduction properties, regarding K₂NiF₄-type H^– conductive oxyhydrides we have found so far.