Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  The Impact of Antimony on the Performance of Antimony Doped Tin Oxide Supported Platinum for the Oxygen Reduction Reaction

Jalalpoor, D., Göhl, D., Paciok, P., Heggen, M., Knossalla, J., Radev, I., et al. (2021). The Impact of Antimony on the Performance of Antimony Doped Tin Oxide Supported Platinum for the Oxygen Reduction Reaction. Journal of the Electrochemical Society, 168(2): 024502. doi:10.1149/1945-7111/abd830.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Jalalpoor, Daniel1, Autor           
Göhl, Daniel2, Autor           
Paciok, Paul3, Autor           
Heggen, Marc3, Autor           
Knossalla, Johannes1, Autor           
Radev, Ivan4, Autor
Peinecke, Volker4, Autor
Weidenthaler, Claudia5, Autor           
Mayrhofer, Karl J. J.2, 6, Autor           
Ledendecker, Marc2, 7, Autor           
Schüth, Ferdi1, Autor           
Affiliations:
1Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
2Electrocatalysis, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863354              
3Ernst-Ruska Centre for Microscopy and Spectroscopy with Electrons, Peter Grünberg Institute, Forschungszentrum Jülich, Jülich, 52425, Germany, ou_persistent22              
4The Hydrogen and Fuel Cell Center (ZBT GmbH), 47057 Duisburg, Germany, ou_persistent22              
5Research Group Weidenthaler, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950291              
6Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), 91058 Erlangen, Germany, ou_persistent22              
7Department of Technical Chemistry, Technical University Darmstadt, 64287 Darmstadt, Germany , ou_persistent22              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: Antimony doped tin oxide (ATO) supported platinum nanoparticles are considered a more stable replacement for conventional carbon supported platinum materials for the oxygen reduction reaction. However, the interplay of antimony, tin and platinum and its impact on the catalytic activity and durability has only received minor attention. This is partly due to difficulties in the preparation of morphology- and surface-area-controlled antimony-doped tin oxide materials. The presented study sheds light onto catalyst–support interaction on a fundamental level, specifically between platinum as a catalyst and ATO as a support material. By using a previously described hard-templating method, a series of morphology controlled ATO support materials for platinum nanoparticles with different antimony doping concentrations were prepared. Compositional and morphological changes before and during accelerated stress tests are monitored, and underlying principles of deactivation, dissolution and catalytic performance are elaborated. We demonstrate that mobilized antimony species and strong metal support interactions lead to Pt/Sb alloy formation as well as partially blocking of active sites. This has adverse consequences on the accessible platinum surface area, and affects negatively the catalytic performance of platinum. Operando time-resolved dissolution experiments uncover the potential boundary conditions at which antimony dissolution can be effectively suppressed and how platinum influences the dissolution behavior of the support.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2020-10-122021-02-02
 Publikationsstatus: Online veröffentlicht
 Seiten: 9
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1149/1945-7111/abd830
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Journal of the Electrochemical Society
  Kurztitel : J. Electrochem. Soc.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: New York, NY, USA : Electrochemical Society
Seiten: - Band / Heft: 168 (2) Artikelnummer: 024502 Start- / Endseite: - Identifikator: ISSN: 0013-4651
CoNE: https://pure.mpg.de/cone/journals/resource/991042748197686