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Issue 18, 2010
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Designer composite materials fabricated from platinum and ruthenium nanoparticles

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Abstract

This paper describes a new strategy for synthesizing electrocatalytically active bimetallic Pt and Ru nanoparticle (NP) composite films by combining Pt and Ru NP films. Each metal NP film could be generated at the water/oil interface and its subsequent transfer to conducting substrates allowed one to rationally design the contact ratio between Pt and Ru NPs. Significantly, each metal NP size could be predetermined by controlling the synthetic conditions, and the interparticle contact between Pt and Ru NPs could be tuned by altering the transfer order. The electrocatalytic activity of the resulting NP composite films toward methanol was investigated as a function of Pt and Ru NP contact ratios. It was found that the maximum contact between Pt and Ru NPs contributes to the minimization of CO poisoning on Pt surfaces, which leads to the maximum electrocatalytic activity toward methanol electrooxidation.

Graphical abstract: Designer composite materials fabricated from platinum and ruthenium nanoparticles

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Publication details

The article was received on 16 Oct 2009, accepted on 18 Feb 2010 and first published on 10 Mar 2010


Article type: Paper
DOI: 10.1039/B921528J
Citation: J. Mater. Chem., 2010,20, 3637-3641
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    Designer composite materials fabricated from platinum and ruthenium nanoparticles

    Y. Park, T. Kim and S. Park, J. Mater. Chem., 2010, 20, 3637
    DOI: 10.1039/B921528J

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