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ECS Meeting Abstracts, 47(MA2013-02), p. 2666-2666, 2013

DOI: 10.1149/ma2013-02/47/2666

The Electrochemical Society, ECS Transactions, 21(58), p. 25-31, 2014

DOI: 10.1149/05821.0025ecst

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Two-Step Microwave Synthesis of Highly Dispersed Ordered Intermetallic PtPb Nanoparticles on Carbon Black

Journal article published in 2014 by Arockiam John Jeevagan, Shou Usui, Naoyuki Sawano, Takao Gunji, Govindachetty Saravanan, Taiki Kojima, Shingo Kaneko, Genki Kobayashi ORCID, Futoshi Matsumoto
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

This article describes a new two-step microwave synthesis method for the preparation of highly dispersed, ordered intermetallic PtPb nanoparticles (NPs) on carbon black (CB). After the highly dispersed Pt NPs/CB were prepared, ordered intermetallic PtPb NPs were formed on CB via the reaction of the CB-supported Pt NPs and a Pb precursor in the presence of a reducing agent under microwave irradiation. The pXRD pattern of the PtPb NPs/CB synthesized via the two-step microwave synthesis method indicated the formation of an ordered intermetallic phase of PtPb in nanoparticle form. The degree of dispersion of the PtPb NPs on CB was virtually the same as that of Pt/CB on CB. The synthesized intermetallic PtPb NPs showed a mass activity of +0.57 mA μg-1 (weight of PtPb) at + 0.2 V (vs. Ag/AgCl, KCl sat.) toward the oxidation of formic acid (0.5 M) in an aqueous solution of 0.1 M sulfuric acid.