期刊
LANGMUIR
卷 29, 期 3, 页码 927-931出版社
AMER CHEMICAL SOC
DOI: 10.1021/la303809m
关键词
-
资金
- Natural Sciences and Engineering Research Council of Canada
Spherical Au-Pt alloy nanoparticles of 10 nm average size have been prepared on a H-terminated Si(100) substrate by an extremely simple method of dip-coating. X-ray photoelectron spectroscopy and glancing-incidence X-ray diffraction confirm the formation of Au-Pt alloy. The Au3+ ions are first reduced on the Si substrate upon dipping, and the freshly formed Au nuclei then work as a catalyst by promoting the reduction of PtCl62- ions on the Au nuclei. The subsequent interdiffusion of Au and Pt atoms leads to the observed alloy formation. The present method provides an environment-friendly, low-cost route to preparing anode electrodes in fuel cells.
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