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Al2Pt for Oxygen Evolution in Water Splitting: A Strategy for Creating Multifunctionality in Electrocatalysis

MPS-Authors
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Antonyshyn,  Iryna
Iryna Antonyshyn, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Sichevych,  Olga
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Burkhardt,  Ulrich
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Veremchuk,  Igor
Igor Veremchuk, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schmidt,  Marcus
Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Ormeci,  Alim
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Spanos,  Ioannis
Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Teschner,  Detre
Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion;
Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Algara-Siller,  Gerardo
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Grin,  Yuri
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;
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Citation

Antonyshyn, I., Barrios Jimenez, A. M., Sichevych, O., Burkhardt, U., Veremchuk, I., Schmidt, M., et al. (2020). Al2Pt for Oxygen Evolution in Water Splitting: A Strategy for Creating Multifunctionality in Electrocatalysis. Angewandte Chemie, International Edition in English, 59(38), 16770-16776. doi:10.1002/anie.202005445.


Cite as: http://hdl.handle.net/21.11116/0000-0007-7A8B-4
Abstract
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.