Synthesis, characterization and electrocatalytic activity for ethanol oxidation of carbon supported Pt, Pt–Rh, Pt–SnO2 and Pt–Rh–SnO2 nanoclusters
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ID: 2725
2009
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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. Keywords: Pt–Rh–SnO2 nanocatalyst, Ethanol electrooxidation, Direct ethanol fuel cell, Polyol synthesis
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| Reference Key |
kowal2009synthesiselectrochemistry
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| Authors | Kowal, A.;Gojković, S.Lj.;Lee, K.-S.;Olszewski, P.;Sung, Y.-E.; |
| Journal | electrochemistry communications |
| Year | 2009 |
| DOI |
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| Keywords | Keywords not found |
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