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Review on Electrochemical Energy Conversion on Intermetallic Compounds

 A sustainable energy infrastructure requires chemical energy conversion, i.e. the storage of renewable energy in small chemical molecules and the release of the stored energy upon demand. Electrocatalysis, comprising reactions like hydrogen generation by water splitting, takes a central role in implementing many of the necessary reactions. With their ordered structure, intermetallic compounds provide a unique combination of crystal and electronic structure, thus new (electro)chemical properties. This review comprises nearly 350 publications since 1970 using intermetallic compounds as electrocatalysts in energy-relevant reactions. Special emphasis lies on the so-far applied optimization strategies involving the peculiar properties of the class of intermetallic compounds. Understanding the versatility of intermetallic compounds opens possibilities for further development of heterogeneous catalysts, e.g. electrodes for electrochemical conversions.

L. Rößner, M. Armbrüster, ACS Catal. 9, 2019, 2018. https://pubs.acs.org/doi/10.1021/acscatal.8b04566