TWO-STEP MICROWAVE SYNTHESIS OF HIGHLY DISPERSED ORDERED INTERMETALLIC PtPb NANOPARTICLES ON CARBON BLACK

被引：5

作者：

Jeevagan, Arockiam John ^{[1
]}

Gunji, Takao ^{[1
]}

Sawano, Naoyuki ^{[1
]}

Saravanan, Govindachetty ^{[2
]}

Kojima, Taiki ^{[1
]}

Kaneko, Shingo ^{[3
]}

Kobayashi, Genki ^{[1
]}

Matsumoto, Futoshi ^{[1
]}

机构：

[1] Kanagawa Univ, Dept Mat & Life Chem, 3-27-1 Rokkakubashi, Yokohama, Kanagawa 2218686, Japan

[2] Natl Environm Engn Res Inst, CSIR, Environm Mat Div, Nagpur 440020, Maharashtra, India

[3] Kanagawa Univ, Engn Res Inst, Kanagawa Ku, Kanagawa 2218686, Japan

来源：

SENSORS, ACTUATORS, AND MICROSYSTEMS (GENERAL) - 224TH ECS MEETING | 2014年 / 58卷 / 21期

关键词：

FORMIC-ACID OXIDATION; ELECTROCATALYTIC ACTIVITY; PERFORMANCE; PLATINUM; CATALYST; SURFACE; PHASES; ALLOY;

D O I：

10.1149/05821.0025ecst

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

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 mu g(-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.

引用

页码：25 / 31

页数：7

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