期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 132, 期 50, 页码 17664-17666出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja107874u
关键词
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资金
- Department of Energy [DE-FG02-87ER45298]
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001086]
- U.S. Department of Energy (DOE) [DE-FG02-87ER45298] Funding Source: U.S. Department of Energy (DOE)
A simple method for the preparation of PdCo@Pd core-shell nanoparticles supported on carbon based on an adsorbate-induced surface segregation effect has been developed. The stability of these PdCo@Pd nanoparticles and their electrocatalytic activity for the oxygen reduction reaction (ORR) were enhanced by decoration with a small amount of Pt deposited via a spontaneous displacement reaction. The facile method described herein is suitable for large-scale, lower-cost production and significantly lowers the Pt loading and thus the cost. The as-prepared PdCo@Pd and Pd-decorated PdCo@Pd nanocatalysts have a higher methanol tolerance than Pt/C in the OAR and are promising cathode catalysts for fuel cell applications.
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