Issue 6, 2005

Electrochemical reactivity in nanoscale domains: O2 reduction on a fullerene modified gold surface

Abstract

Fullerene is strongly adsorbed on both single crystal and polycrystalline gold surfaces and its specific adsorption resulted in the formation of high coverage large hexagonal rafts with strong interactions between the adsorbed fullerene molecules and the Au substrate. The oxygen reduction reaction (ORR) was investigated on these surfaces to determine their influence on the reduction mechanism. Oxygen reduction did not take place on the fullerene overlayer but proceeded on the sub-nanometer sized exposed pockets of the underlying Au substrate. Reduction at these confined sites produces hydrogen peroxide selectively. This effect is ascribed to the blocking action, or so-called “third body effect”, of the adsorbed fullerene molecules, which do not display electrocatalytic properties for oxygen reduction.

Graphical abstract: Electrochemical reactivity in nanoscale domains: O2 reduction on a fullerene modified gold surface

Article information

Article type
Paper
Submitted
26 Nov 2004
Accepted
25 Jan 2005
First published
07 Feb 2005

Phys. Chem. Chem. Phys., 2005,7, 1293-1299

Electrochemical reactivity in nanoscale domains: O2 reduction on a fullerene modified gold surface

A. Kuzume, E. Herrero, J. M. Feliu, E. Ahlberg, R. J. Nichols and D. J. Schiffrin, Phys. Chem. Chem. Phys., 2005, 7, 1293 DOI: 10.1039/B417928P

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