Issue 24, 2011
From the journal:

Physical Chemistry Chemical Physics

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

Bingchen Du,a   Oksana Zaluzhnaa  and  YuYe J. Tong*a  

* Corresponding authors

a Department of Chemistry, Georgetown University, 37th and O St, NW, Washington, DC, USA
E-mail: yyt@georgetown.edu

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

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C1CP20761J
Article type
Communication
Submitted
15 Mar 2011
Accepted
15 Apr 2011
First published
20 May 2011

Phys. Chem. Chem. Phys., 2011,13, 11568-11574

Permissions

Request permissions

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

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements