| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 181345 | Electrochemistry Communications | 2009 | 4 Pages |
Abstract
Nanoclusters of Pt, Pt–Rh, Pt–SnO2 and Pt–Rh–SnO2 were successfully synthesized by polyol method and deposited on high-area carbon. HRTEM and XRD analysis revealed two phases in the ternary Pt–Rh–SnO2/C catalyst: solid solution of Rh in Pt and SnO2. The activity of Pt–Rh–SnO2/C for ethanol oxidation was found to be much higher than Pt/C and Pt–Rh/C and also superior to Pt–SnO2/C. Quasi steady-state measurements at various temperatures (30–60 °C), ethanol concentrations (0.01–1 M) and H2SO4 concentrations (0.02–0.5 M) showed that Pt–Rh–SnO2/C is about 20 times more active than Pt/C in the potential range of interest for the fuel cell application.
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Authors
A. Kowal, S.Lj. Gojković, K.-S. Lee, P. Olszewski, Y.-E. Sung,