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Al2Pt for Oxygen Evolution in Water Splitting: a Strategy for Creating Multi-functionality in Electrocatalysis.
Angewandte Chemie International Edition ( IF 12.257 ) Pub Date : 2020-05-22 , DOI: 10.1002/anie.202005445
Iryna Antonyshyn,Ana Maria Barrios Jimenez,Olga Sichevych,Ulrich Burkhardt,Igor Veremchuk,Marcus Schmidt,Alim Ormeci,Ioannis Spanos,Andrey Tarasov,Detre Teschner,Gerardo Algara-Siller,Robert Schlögl,Yuri Grin

The production of hydrogen via water electrolysis is feasible only if effective and stable catalysts for the oxygen evolution reaction (OER) are available. Intermetallic compounds with the well-defined crystal and electronic structures as well as particular chemical bonding features are suggested here to act as precursors for new composite materials with attractive catalytic properties. Al 2 Pt combines a characteristic inorganic crystal structure (anti-fluorite type) and a strongly polar chemical bonding with the advantage of elemental platinum in terms of stability against dissolution under OER conditions. We describe here the unforeseen performance of a surface nanocomposite architecture resulting from the self-organized transformation of the bulk intermetallic precursor Al 2 Pt in OER.
更新日期:2020-05-22

 

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