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  Electrifying model catalysts for understanding electrocatalytic reactions in liquid electrolytes

Faisal, F., Stumm, C., Bertram, M., Waidhas, F., Lykhach, Y., Cherevko, S., et al. (2018). Electrifying model catalysts for understanding electrocatalytic reactions in liquid electrolytes. Nature Materials, 17(7), 592-598. doi:10.1038/s41563-018-0088-3.

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 Creators:
Faisal, Firas1, Author           
Stumm, Corinna1, Author           
Bertram, Manon1, Author           
Waidhas, Fabian1, Author           
Lykhach, Yaroslava1, Author           
Cherevko, Serhiy2, 3, Author           
Xiang, Feifei4, Author           
Ammon, Maximilian4, Author           
Vorokhta, Mykhailo5, Author           
Šmíd, Břetislav5, Author           
Skála, Tomáš5, Author           
Tsud, Nataliya5, Author           
Neitzel, Armin1, Author           
Beranová, Klára6, 7, Author           
Prince, Kevin C.6, Author           
Geiger, Simon2, Author           
Kasian, Olga2, Author           
Wähler, Tobias1, Author           
Schuster, Ralf1, Author           
Schneider, M. Alexander4, Author           
Matolín, Vladimír5, Author           Mayrhofer, Karl Johann Jakob2, 3, Author           Brummel, Olaf1, Author           Libuda, Jörg1, 8, Author            more..
Affiliations:
1Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, persistent22              
2Electrocatalysis, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863354              
3Helmholtz-Institute Erlangen-Nuremberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Egerlandstrasse 3, 91058 Erlangen, Germany, ou_persistent22              
4Lehrstuhl für Festkörperphysik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, persistent22              
5Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University, Prague, Czech Republic, persistent22              
6Elettra-Sincrotrone Trieste SCpA, Basovizza-Trieste, Italy, persistent22              
7Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic, persistent22              
8Erlangen Catalysis Resource Center, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, persistent22              

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Free keywords: Catalysis; Catalysts; Electrocatalysis; Electrolytes; Metal nanoparticles; Particle size; Renewable energy resources, Electrocatalytic materials; Electrocatalytic process; Electrocatalytic reactions; Electrochemical environments; Energy storage and conversions; Nanoparticle interfaces; Renewable energy systems; Synergistic reactions, Platinum compounds
 Abstract: Electrocatalysis is at the heart of our future transition to a renewable energy system. Most energy storage and conversion technologies for renewables rely on electrocatalytic processes and, with increasing availability of cheap electrical energy from renewables, chemical production will witness electrification in the near future 1-3 . However, our fundamental understanding of electrocatalysis lags behind the field of classical heterogeneous catalysis that has been the dominating chemical technology for a long time. Here, we describe a new strategy to advance fundamental studies on electrocatalytic materials. We propose to 'electrify' complex oxide-based model catalysts made by surface science methods to explore electrocatalytic reactions in liquid electrolytes. We demonstrate the feasibility of this concept by transferring an atomically defined platinum/cobalt oxide model catalyst into the electrochemical environment while preserving its atomic surface structure. Using this approach, we explore particle size effects and identify hitherto unknown metal-support interactions that stabilize oxidized platinum at the nanoparticle interface. The metal-support interactions open a new synergistic reaction pathway that involves both metallic and oxidized platinum. Our results illustrate the potential of the concept, which makes available a systematic approach to build atomically defined model electrodes for fundamental electrocatalytic studies. © 2018 The Author(s).

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Language(s): eng - English
 Dates: 2018-07-01
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/s41563-018-0088-3
BibTex Citekey: Faisal2018592
 Degree: -

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Title: Nature Materials
  Abbreviation : Nat. Mater.
Source Genre: Journal
 Creator(s):
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Publ. Info: London, UK : Nature Pub. Group
Pages: - Volume / Issue: 17 (7) Sequence Number: - Start / End Page: 592 - 598 Identifier: ISSN: 1476-1122
CoNE: https://pure.mpg.de/cone/journals/resource/111054835734000