Abstract
In the present work nano-sized Pt-Pd alloys have been prepared by polyol process on Vulcan XC72. The information on structural characteristics and surface chemistry of the nano-material was obtained using TEM, XRD and XPS. Their catalytic activities against methanol and ethanol oxidation were measured and compared with that of commercial Pt/C (20wt% ETEK) by electrochemical methods. The methanol and ethanol oxidation was studied in half cells at different temperatures. The results show that Pt-Pd/C catalysts were more active for oxidation of methanol than ethanol. The significant improvement in the catalytic activities for methanol and ethanol oxidation compared to that of the Pt/C is believed due to the higher electrochemical surface area and the synergistic effect between Pt and Pd.
| Original language | English |
|---|---|
| Pages (from-to) | 4312-4320 |
| Number of pages | 9 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 34 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - May 2009 |
Funding
The authors are grateful to the Scientific and Technical Research Council of Turkey (Project No:TBAG 104T358), Turkish State Planning Office (Project No: 90178) and Scientific Research Fund of Istanbul Technical University for financial assistance.
| Funders | Funder number |
|---|---|
| Turkish State Planning Office | 90178 |
| Türkiye Bilimsel ve Teknolojik Araştirma Kurumu | TBAG 104T358 |
| Istanbul Teknik Üniversitesi |
Keywords
- Direct alcohol PEM fuel cells
- Electrocatalysis
- Ethanol
- Methanol
- Nano-sized Pt-Pd/C
