One major feature of successful hydrogen storage materials (HSMs) is that they are characterized by large gravimetric and volumetric H contents. Metallic and superconducting hydrides, MSHs, (at 1 atm and also at substantial pressures) should exhibit the same feature as they benefit from (i) large partial density of electronic states at H atoms, and (ii) broad energy scale for phonons participating in the electron-phonon coupling. In this account, author's personal view on both classes of materials will be presented, with emphasis on unique electronic, thermodynamic and thermal properties which make a good HSM or MSH, and focus on the link between the two classes of materials.

From hydrogen storage materials to metallic and superconducting hydrides

254th National Meeting (2017)

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