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Gas-phase applications of metal hydrides
Applications of metal hydrides (MHs) utilise a reversible interaction of hydride-forming metals, alloys and intermetallic
compounds with hydrogen. The reversible process of the formation-decomposition of the MH when interacting with
hydrogen allows to utilise several unique features of the hydrogenation-dehydrogenation process. These features
enable efficient storage of hydrogen gas resulting in a high volumetric efficiency of hydrogen storage while also storing thermal energy and converting it to the energy of compressed hydrogen gas or utilising the hydrides for the
electrochemical energy conversion and storage. Thus, MH applications are very important as the components of the
hydrogen energy systems integrating hydrogen supply from the metal hydride store and PEM fuel cells. Compact and
safe hydrogen storage together with utilisation of the waste heat opens up for the commercial market of the hydrogen
energy systems of green energy storage and supply.