In-situ structure and catalytic mechanism of NiFe and CoFe layered double hydroxides during oxygen evolution.


Journal

Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555

Informations de publication

Date de publication:
20 May 2020
Historique:
received: 30 03 2020
accepted: 21 04 2020
entrez: 21 5 2020
pubmed: 21 5 2020
medline: 21 5 2020
Statut: epublish

Résumé

NiFe and CoFe (MFe) layered double hydroxides (LDHs) are among the most active electrocatalysts for the alkaline oxygen evolution reaction (OER). Herein, we combine electrochemical measurements, operando X-ray scattering and absorption spectroscopy, and density functional theory (DFT) calculations to elucidate the catalytically active phase, reaction center and the OER mechanism. We provide the first direct atomic-scale evidence that, under applied anodic potentials, MFe LDHs oxidize from as-prepared α-phases to activated γ-phases. The OER-active γ-phases are characterized by about 8% contraction of the lattice spacing and switching of the intercalated ions. DFT calculations reveal that the OER proceeds via a Mars van Krevelen mechanism. The flexible electronic structure of the surface Fe sites, and their synergy with nearest-neighbor M sites through formation of O-bridged Fe-M reaction centers, stabilize OER intermediates that are unfavorable on pure M-M centers and single Fe sites, fundamentally accounting for the high catalytic activity of MFe LDHs.

Identifiants

pubmed: 32433529
doi: 10.1038/s41467-020-16237-1
pii: 10.1038/s41467-020-16237-1
pmc: PMC7239861
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

2522

Subventions

Organisme : Deutsche Forschungsgemeinschaft (German Research Foundation)
ID : STR 596/8-1
Organisme : Intramural NIH HHS
ID : Z01 SC010379
Pays : United States
Organisme : EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council)
ID : ERC-725915
Organisme : DOE | Office of Energy Efficiency & Renewable Energy | Wind Energy Technologies Office (U.S. Department of Energy's (DOE's) Wind Energy Technologies Office)
ID : DE-EE0007270
Organisme : DOE | Office of Science (SC)
ID : DE-SC0010379
Organisme : Bundesministerium für Wirtschaft und Energie (Federal Ministry for Economic Affairs and Energy)
ID : 03EIV041F

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Auteurs

Fabio Dionigi (F)

The Electrochemical Energy, Catalysis, and Materials Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany. fabio.dionigi@tu-berlin.de.

Zhenhua Zeng (Z)

Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana, 47907, USA. zeng46@purdue.edu.

Ilya Sinev (I)

Department of Physics, Ruhr-University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany.
Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4 - 6, 14195, Berlin, Germany.

Thomas Merzdorf (T)

The Electrochemical Energy, Catalysis, and Materials Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany.

Siddharth Deshpande (S)

Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana, 47907, USA.

Miguel Bernal Lopez (MB)

Department of Physics, Ruhr-University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany.
Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4 - 6, 14195, Berlin, Germany.

Sebastian Kunze (S)

Department of Physics, Ruhr-University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany.
Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4 - 6, 14195, Berlin, Germany.

Ioannis Zegkinoglou (I)

Department of Physics, Ruhr-University Bochum, Universitaetsstrasse 150, 44801, Bochum, Germany.
Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4 - 6, 14195, Berlin, Germany.

Hannes Sarodnik (H)

The Electrochemical Energy, Catalysis, and Materials Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany.

Dingxin Fan (D)

Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana, 47907, USA.

Arno Bergmann (A)

The Electrochemical Energy, Catalysis, and Materials Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany.
Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4 - 6, 14195, Berlin, Germany.

Jakub Drnec (J)

European Synchrotron Radiation Facility, ID 31 Beamline, BP 220, F-38043, Grenoble, France.

Jorge Ferreira de Araujo (JF)

The Electrochemical Energy, Catalysis, and Materials Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany.

Manuel Gliech (M)

The Electrochemical Energy, Catalysis, and Materials Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany.

Detre Teschner (D)

Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany.
Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470, Mülheim an der Ruhr, Germany.

Jing Zhu (J)

CAS Excellence Center for Nanoscience, Hefei National Laboratory for Physical Sciences at Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, China.

Wei-Xue Li (WX)

CAS Excellence Center for Nanoscience, Hefei National Laboratory for Physical Sciences at Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, China.

Jeffrey Greeley (J)

Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana, 47907, USA.

Beatriz Roldan Cuenya (BR)

Department of Interface Science, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4 - 6, 14195, Berlin, Germany. roldan@fhi-berlin.mpg.de.

Peter Strasser (P)

The Electrochemical Energy, Catalysis, and Materials Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany. pstrasser@tu-berlin.de.

Classifications MeSH