PtM/C catalyst prepared using reverse micelle method for oxygen reduction reaction in PEM fuel cells

被引：104

作者：

Qian, Yangdong ^{[1
,2
]}

Wen, Wen ^{[1
,3
]}

Adcock, Peter A. ^{[1
]}

Jiang, Zheng ^{[2
]}

Hakim, Nazih ^{[1
]}

Saha, Madhu S. ^{[1
]}

Mukerjee, Sanjeev ^{[1
]}

机构：

[1] Northeastern Univ, Dept Chem, Boston, MA 02115 USA

[2] Univ Oxford, Wolfson Catalysis Ctr, Inorgan Chem Lab, Oxford OX1 3QR, England

[3] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 04期

关键词：

D O I：

10.1021/jp074929i

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Synthesis of carbo n-supported PtM/C catalysts (M = Co, Cr, or Fe) using a new preparation technique, a reverse micelle method, is reported. The catalysts were characterized by different surface techniques: X-ray diffraction, scanning electron microscope,transmission electron microscope, and energy dispersive X-ray microanalysis. Surface characterization showed that Pt/M nanoparticles on catalysts were synthesized using the reverse micelle method. Pt/M nanoparticles were observed to be uniform spherical objects. The performance of the PtM/C catalysts was tested by the rotating disk electrode technique. A trend of catalytic activity for oxygen reduction reaction (ORR) was obtained: PtCo/C(T, 500) similar to PtCo/C(S) > PtCr/C(S) > PtFe/C(S) similar to Pt/C > PtFe/C(T, 500) similar to PtCr/C(T, 500), showing that PtCo/C-type catalysts had a higher catalytic activity for ORR.

引用

页码：1146 / 1157

页数：12

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