- AutorIn
- Raphael Chattot Univ. Grenoble Alpes, CNRS, Grenoble INP ⊥, Univ. Savoie Mont Blanc, LEPMI, 38000 Grenoble, France#ESRF-The European Synchrotron, ID 31 Beamline, 38043 Grenoble, France
- Oliver Le BacqUniv. Grenoble Alpes, CNRS, Grenoble INP ⊥, SIMAP, 38000 Grenoble, France
- Vera BeermannElectrochemical Energy, Catalysis and Material Science Laboratory, Department of Chemistry, Technische Universität Berlin, 10623 Berlin
- Stefanie Kühl
- Juan Herranz
- Sebastian Henning
- Laura Kühn
- Tristan Asset
- Laure Guetaz
- Gilles Renou
- Jakub Drnec
- Pierre Bordet
- Alain Pasturel
- Prof. Dr. Alexander Eychmüller
- Thomas J. Schmidt
- Peter Strasser
- Laetitia Dubau
- Frederic Maillard
- Titel
- Surface Distortion as a Unifying Concept and Descriptor in Oxygen Reduction Reaction Electrocatalysis
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-348328
- Quellenangabe
- Nature Materials Erscheinungsort: London
Verlag: Nature Publishing Group
Erscheinungsjahr: 2018
Jahrgang: 17
Heft: 9
Seiten: 827-833
ISSN: 1476-4660 - Abstract (EN)
- Tuning the surface structure at the atomic level is of primary importance to simultaneously meet the electrocatalytic performance and stability criteria required for the development of low-temperature proton-exchange membrane fuel cells (PEMFCs). However, transposing the knowledge acquired on extended, model surfaces to practical nanomaterials remains highly challenging. Here, we propose the ‘Surface Distortion’ as a novel structural descriptor, which is able to reconciliate and unify seemingly opposing notions and contradictory experimental observations in regards to the electrocatalytic oxygen reduction reaction (ORR) reactivity. Beyond its unifying character, we show that surface distortion is pivotal to rationalise the electrocatalytic properties of state-of-art of PtNi/C nanocatalysts with distinct atomic composition, size, shape and degree of surface defectiveness under simulated PEMFC cathode environment. Our study brings fundamental and practical insights into the role of surface defects in electrocatalysis and thus highlights strategies to design more efficient and durable new generation of nanocatalysts
- Andere Ausgabe
- Link zum Artikel, der zuerst in der Zeitschrift 'Nature Materials' erschienen ist.
DOI: 10.1038/s41563-018-0133-2 - Freie Schlagwörter (DE)
- Elektrokatalyse, heterogene Katalyse, Nanopartikel
- Freie Schlagwörter (EN)
- Electrocatalysis, Heterogeneous catalysis, Nanoparticles
- Klassifikation (DDC)
- 610
- Klassifikation (RVK)
- XA 10000
- Verlag
- Nature Publishing Group, London
- Förder- / Projektangaben
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-348328
- Veröffentlichungsdatum Qucosa
- 08.08.2019
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis