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| Evaluation of ethanol, 1-propanol, and 5-propanol in a direct oxidation polymer-electrolyte fuel cell - A real-time mass spectrometry study |
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| Author(s): Wang JT, Wasmus S, Savinell RF |
| Source: JOURNAL OF THE ELECTROCHEMICAL SOCIETY Volume: 142 Issue: 12 Pages: 4218-4224 Published: DEC 1995 |
| Times Cited: 165 References: 21 |
| Abstract: Ethanol, 1-propanol, and 2-propanol have been evaluated as alternative fuels for direct methanol/oxygen fuel cells. The relative product distributions for the electro-oxidation of these alcohols under fuel-cell conditions were determined using on-line mass spectrometry. For water/ethanol mole ratios between 5 and 2, ethanal is the main product, while CO2 is a minor product. However, an increase of the water/ethanol mole ratio increased the relative product distribution of CO2 slightly Propanal was the main product of the electro-oxidation of 1-propanol with a similar percentage of CO2 being formed as for ethanol. In contrast, the electro-oxidation of 2-propanol yielded practically only acetone. Between 150 and 190 degrees C, the product distributions for the electro-oxidation of ethanol, 1-propanol, and 2-propanol do not depend significantly on the temperature. No differences in the product selectivities of Pt-Ru and Pt-black were found. Ethanol is a promising alternative fuel for direct methanol fuel cells (DMFCs) with an electrochemical activity comparable to that of methanol. Conversely, 1-propanol and 2-propanol are not suitable as fuels for DMFCs due to their low electrochemical activity. |
| Document Type: Article |
| Language: English |
| Reprint Address: Wang, JT (reprint author), CASE WESTERN RESERVE UNIV, DEPT CHEM ENGN, CLEVELAND, OH 44106 USA |
Addresses:
1. CASE WESTERN RESERVE UNIV, ERNEST B YEAGER CTR ELECTROCHEM SCI, CLEVELAND, OH 44106 USA |
| Publisher: ELECTROCHEMICAL SOC INC, 10 SOUTH MAIN STREET, PENNINGTON, NJ 08534 |
| Subject Category: Electrochemistry; Materials Science, Coatings & Films |
| IDS Number: TL120 |
| ISSN: 0013-4651 |
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| | | | | | | | | Record from Web of Science® | | | | | | | | | |