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Locating Fe dopants in catalytic PtPd nanoparticles on γ-alumina using X-ray absorption spectroscopy

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DOI

  • Espen Z. Eikeland, Danish Technological Institute
  • ,
  • Hugo Silva, Danish Technological Institute
  • ,
  • Lasse R. Jørgensen
  • Jonas Beyer
  • Toshiaki Ina, Japan Synchrotron Radiation Research Institute
  • ,
  • Henrik L. Hellstern, Danish Technological Institute
  • ,
  • Christian Kallesøe, Danish Technological Institute
  • ,
  • Leif H. Christensen, Danish Technological Institute
  • ,
  • Bo B. Iversen

Addition of Fe to PtPd nanoparticles on γ-alumina is known to increase catalytic activity. This is shown to stem from increased Pt-Pd coordination during thermal aging which induces microstrain. X-ray absorption spectroscopy analysis reveals that the Fe dopant atoms are incorporated into the alumina surface, which fine tunes the electronic state and provides greater oxidation resistance to Pt.

Original languageEnglish
JournalCatalysis Science and Technology
Volume11
Issue5
Pages (from-to)1961-1964
Number of pages4
ISSN2044-4753
DOIs
Publication statusPublished - Mar 2021

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© The Royal Society of Chemistry 2021.

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