The Effect of Size on the Oxygen Electroreduction Activity of Mass‐Selected Platinum Nanoparticles

Francisco Pérez Alonso, David Norman McCarthy, Anders Ulrik Fregerslev Nierhoff, Patricia Hernandez-Fernandez, Christian Ejersbo Strebel, Ifan E. L. Stephens, Jane Hvolbæk Nielsen, Ib Chorkendorff

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A matter of size: The particle size effect on the activity of the oxygen reduction reaction of size-selected platinum clusters was studied. The ORR activity decreased with decreasing Pt nanoparticle size, corresponding to a decrease in the fraction of terraces on the surfaces of the Pt nanoparticles (jk=kinetic current density, see picture).

Original languageEnglish
JournalAngewandte Chemie
Volume124
Issue number19
Pages (from-to)4719-4721
ISSN0044-8249
DOIs
Publication statusPublished - 2012

Keywords

  • Electrochemistry
  • Fuel cells
  • Heterogeneous catalysis
  • Nanoparticles
  • Platinum

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