Synthesis and Characterization of PtRe Alloy Nanoparticles as Electrocatalysts for Methanol Oxidation

被引：4
作者：
Liu, Zhufang [1 ]
Kang, Shishou [2 ]
Shamsuzzoha, Mohammad [3 ]
Nikles, David E. [1 ,2 ]
机构：
[1] Univ Alabama, Dept Chem, Tuscaloosa, AL 35487 USA
[2] Univ Alabama, Ctr Mat Informat Technol, Tuscaloosa, AL 35487 USA
[3] Univ Alabama, Cent Analyt Facil, Tuscaloosa, AL 35487 USA
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2010年 / 10卷 / 07期
关键词：
PtRe; Alloy Nanoparticles; Methanol Oxidation; CONTROLLED SIZE; FUEL-CELLS; CARBON-MONOXIDE; ELECTROOXIDATION; CO; ACTIVATION; CATALYSTS; ELECTRODE; PLATINUM;
D O I：
10.1166/jnn.2010.2395
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report a new synthesis of PtRe alloy nanoparticles (NPs) and their electrocatalytic activity for methanol oxidation. PtRe alloy NPs with controlled composition were prepared by a capping agents-based colloidal method. In the synthesis, trioctylamine was used as high-boiling solvent, and oleylamine/oleic acid were employed as capping agents to control the particle size and dispersion. The PtRe NPs were fully characterized by TEM, EDX, XRD and XPS. The as-prepared PtRe NPs had a narrow size distribution, and displayed a good dispersion in hydrocarbon solvents. Carbon-supported PtRe catalysts were prepared by physical deposition of as-prepared particles on carbon powder, followed by the catalytic activation at 400 degrees C in Ar/H-2. Electrochemical studies showed the PtRe catalysts had high activity for methanol electrooxidation.
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收藏
页码：4266 / 4272
页数：7
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