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| Autor: | Iryna, Antonyshyn, Ana M, Barrios Jiménez, Olga, Sichevych, Ulrich, Burkhardt, Igor, Veremchuk, Marcus, Schmidt, Alim, Ormeci, Ioannis, Spanos, Andrey, Tarasov, Detre, Teschner, Gerardo, Algara-Siller, Robert, Schlögl, Yuri, Grin |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Angewandte Chemie (International Ed. in English) |
| ISSN: | 1521-3773 |
| Popis: | 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 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. Al2Pt 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 Al2Pt in OER. Unforeseen performance: The study of the chemical and morphological transformation of intermetallic Al2Pt, a precursor of a new composite material, under the harsh oxidative conditions of the oxygen evolution reaction (OER) is accompanied by its electrochemical characterization at different stages of long‐term operation. |
| Databáze: | OpenAIRE |
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