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Issue 24, 2011
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Electrocatalytic properties of Au@Pt nanoparticles: effects of Pt shell packing density and Au core size

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Abstract

A detailed study of electrocatalytic properties of Au@Pt nanoparticles (NPs) as functions of Pt shell packing density and Au core size in terms of CO/methanol oxidation and oxygen reduction reactions is reported here. While most samples studied showed inferior catalytic activities to those of the commercial Pt black that fall reasonably well in a d-band-center up-shift (i.e., stronger surface bonding) regime, the steepest activity recovery trend as manifested by the smallest Au-core samples suggests a plausible transition to a d-band-center down-shift (i.e., weaker surface bonding) regime as the Au core becomes smaller.

Graphical abstract: Electrocatalytic properties of Au@Pt nanoparticles: effects of Pt shell packing density and Au core size

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Supplementary files

Article information


Submitted
15 Mar 2011
Accepted
15 Apr 2011
First published
20 May 2011

Phys. Chem. Chem. Phys., 2011,13, 11568-11574
Article type
Communication

Electrocatalytic properties of Au@Pt nanoparticles: effects of Pt shell packing density and Au core size

B. Du, O. Zaluzhna and Y. J. Tong, Phys. Chem. Chem. Phys., 2011, 13, 11568
DOI: 10.1039/C1CP20761J

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