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
收藏
页码：1146 / 1157
页数：12
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