Pd-Fe nanoparticles as electrocatalysts for oxygen reduction

被引：605

作者：

Shao, MH ^{[1
]}

Sasaki, K ^{[1
]}

Adzic, RR ^{[1
]}

机构：

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 11期

关键词：

D O I：

10.1021/ja060167d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have synthesized new electrocatalysts for the O2 reduction reaction that does not contain Pt. They consist of carbon-supported Pd-Fe alloys and have very high oxygen reduction. The nanoparticles with a Pd:Fe molar ratio of 3:1 (Pd3Fe/C) show a higher mass activity than that of commercial Pt/C. The surface-specific activity of the Pd-Fe alloys is related to the Pd-Pd bond distance: the shorter the bond distance, the higher the activity. This new class of electrocatalysts promises to alleviate some major problems of existing fuel cell technology by simultaneously decreasing materials cost and enhancing performance. Copyright © 2006 American Chemical Society.

引用

页码：3526 / 3527

页数：2

共 13 条

[1]

ADZIC RR, 2004, DOE HYDROGEN FUEL CE

[2] Synthesis of spherical FePd and CoPt nanoparticles [J].