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

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...

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Veröffentlicht in:	Angewandte Chemie International Edition 2012-05, Vol.51 (19), p.4641-4643
Hauptverfasser:	Perez-Alonso, Francisco J., McCarthy, David N., Nierhoff, Anders, Hernandez-Fernandez, Patricia, Strebel, Christian, Stephens, Ifan E. L., Nielsen, Jane H., Chorkendorff, Ib
Format:	Artikel
Sprache:	eng
Schlagworte:	electrochemistry fuel cells heterogeneous catalysis nanoparticles platinum
Online-Zugang:	Volltext
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Zusammenfassung:	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).
ISSN:	1433-7851 1521-3773
DOI:	10.1002/anie.201200586