Pt/C Catalyst with High Pt Loading Prepared by a Modified Polyol Process and Its Catalytic Activity to Methanol Oxidation

被引：0

作者：

Zhang Junmin ^{[1
]}

Zhu Fangfang ^{[1
]}

Liu Weiping ^{[1
]}

Zhang Kunhua ^{[1
]}

Guan Weiming ^{[1
]}

机构：

[1] Kunming Inst Precious Met, State Key Lab Adv Technol Comprehens Utilizat Pla, Kunming 650106, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2013年 / 42卷 / 09期

关键词：

Pt/C catalysts; modified polyol method; direct methanol fuel cells (DMFCs); electrochemical performance; FUEL-CELLS; FEPT NANOPARTICLES; ANODE CATALYSTS; PARTICLE-SIZE; NANOCRYSTALS; REDUCTION; PLATINUM;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pt/C catalyst with high Pt loading used in direct methanol fuel cells (DMFCs) was prepared by a new modified polyol method. Transmission electron microscopy (TEM), X-ray diffraction (XRD) and cyclic voltammograms (CVs) were used to characterize the composition morphology and the electrochemical properties of the Pt/C catalyst. The results reveal that the Pt nanoparticles have small average particle size (similar to 2.52 nm), with high dispersion on the carbon support. The Pt/C catalyst exhibits higher catalytic activity and stability than that of the JM70%-Pt/C. It is suggested that the modified polyol method is efficient for Pt/C catalyst preparation.

引用

页码：1941 / 1944

页数：4

共 14 条

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