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Al 2 Pt for Oxygen Evolution in Water Splitting: A Strategy for Creating Multifunctionality in Electrocatalysis
Author(s) -
Antonyshyn Iryna,
Barrios Jiménez Ana M.,
Sichevych Olga,
Burkhardt Ulrich,
Veremchuk Igor,
Schmidt Marcus,
Ormeci Alim,
Spanos Ioannis,
Tarasov Andrey,
Teschner Detre,
AlgaraSiller Gerardo,
Schlögl Robert,
Grin Yuri
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202005445
Subject(s) - intermetallic , electrocatalyst , oxygen evolution , catalysis , electrolysis of water , dissolution , platinum , materials science , water splitting , electrolysis , chemical engineering , inorganic chemistry , chemistry , metallurgy , photocatalysis , electrode , electrochemistry , organic chemistry , alloy , electrolyte , engineering
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. 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.