Abstract
Fuel cells operating on methanol are gaining considerable attention as alternative power sources. One of the issues that needs to be resolved is finding better electrocatalysts for the oxidation of methanol. We are currently involved in the synthesis and the characterization of high surface area Pt-based binary, ternary and quaternary catalysts. Addition of Ru, Ir and Os as promoters for the oxidation of methanol is being investigated. Several material and electrochemical techniques were used to characterize the catalysts. Activation energies for methanol oxidation calculated at 0.4 V was between 25-28 kJ mol -1 at all the H 2 reduced catalysts considered in this work. This indicates that the oxidation mechanism of methanol at all the multi-component catalysts used in this study is probably similar. The H 2 reduced catalysts have better activities, low onset potentials and higher degree of alloying compared with the NaBH 4 reduced catalysts.
| Original language | English (US) |
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| Pages | 108-120 |
| Number of pages | 13 |
| State | Published - 2005 |
| Event | Fundamental Understanding of Electrode Processes, in Memory of Professor Ernest B. Yeager - Proceedings of the International Symposium - Orlando, FL, United States Duration: Oct 12 2003 → Dec 17 2003 |
Other
| Other | Fundamental Understanding of Electrode Processes, in Memory of Professor Ernest B. Yeager - Proceedings of the International Symposium |
|---|---|
| Country/Territory | United States |
| City | Orlando, FL |
| Period | 10/12/03 → 12/17/03 |
All Science Journal Classification (ASJC) codes
- Engineering(all)