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Catalizadores Anodicos Basados En Platino Para Celdas De Combustible De Etanol
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hoyos, Bibian A. Sánchez, Carlos González, Javier |
| Copyright Year | 2007 |
| Abstract | In this work it is studied the electro-catalytic behavior of pure platinum and platinum-based alloys with Ru, Sn, Ir, and Os supported on carbon to the ethanol electro-oxidation in aims to develop anodic catalysts for direct ethanol fuel cells. Additionally, porous electrodes and membrane electrode assemblies were built for proton exchange membrane fuel cells in which the electrodes were tested. Catalysts characterization was made by cyclic voltammetry whereas the fuel cells behavior tests were made by current-potential polarization curves. In general, all alloys show a lower on-set reaction potential and a higher catalytic activity than pure platinum. However, in the high over potential zone, pure platinum has higher catalytic activity than the alloys. In agreement with these results, the alloys studied here could be useful in fuel cells operating on moderated and low current. |
| Starting Page | 195 |
| Ending Page | 202 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| Volume Number | 74 |
| Alternate Webpage(s) | http://www.scielo.org.co/pdf/dyna/v74n153/a22v74n153.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
