Enhanced electrocatalytic activity of Pt subnanoclusters on graphene nanosheet surface.

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Abstract

Graphene nanosheet (GNS) gives rise to an extraordinary modification to the properties of Pt cluster electrocatalysts supported on it. The Pt/GNS electrocatalyst revealed an unusually high activity for methanol oxidation reaction compared to Pt/carbon black catalyst. The Pt/GNS electrocatalyst also revealed quite a different characteristic for CO oxidation among the measured catalyst samples. It is found that Pt particles below 0.5 nm in size are formed on GNS, which would acquire the specific electronic structures of Pt, modifying its catalytic activities.

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Journal

Journal ID (iso-abbrev): Nano Lett

Title: Nano letters

Publisher: American Chemical Society (ACS)

ISSN (Electronic): 1530-6992

ISSN (Print): 1530-6984

Publication date (Electronic): Jun 2009

Volume: 9

Issue: 6

Affiliations

[1 ] Graduate School of Pure and Applied Science, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan.

Article

DOI: 10.1021/nl900397t

PubMed ID: 19405511

SO-VID: 9231b7fa-6f3d-47cd-a35b-cbc59572b249

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