Progress in the development of a high-power, direct ethylene glycol fuel cell (DEGFC)
Livshits, V; Peled, E
| HERO ID | 1144937 |
|---|---|
| In Press | No |
| Year | 2006 |
| Title | Progress in the development of a high-power, direct ethylene glycol fuel cell (DEGFC) |
| Authors | Livshits, V; Peled, E |
| Journal | Journal of Power Sources |
| Volume | 161 |
| Issue | 2 |
| Page Numbers | 1187-1191 |
| Abstract | We recently reported on a high-power nanoporous proton-conducting membrane (NP-PCM)-based direct methanol fuel cell (DMFC) operated with triflic acid. However, accompanying the advantages of methanol as a fuel, such as low cost and ease of handling and storage, are several pronounced disadvantages: toxicity, high flammability, low boiling point (65 degrees C) and the strong tendency to pass through the polymer-exchange membrane (high crossover). The focus of this work is the development of a high-power direct ethylene glycol fuel cell (DEGFC) based on the NP-PCM. Ethylene glycol (EG) has a theoretical capacity 17% higher than that of methanol in terms of Ah ml(-1) (4.8 and 4, respectively); this is especially important for portable electronic devices. It is also a safer (bp 198 degrees C) fuel for direct-oxidation fuel cell (DOFC) applications. Maximum power densities of 320 mW cm(-2) (at 0.32 V) at 130 degrees C have been achieved in the DEGFC fed with 0.72 M ethylene glycol in 1.7 M triflic acid at 3 atm at the anode and with dry air at 3.7 atm at the cathode. The cell platinum loading was 4 Mg pt cm(-2) on each electrode. The overpotentials at the cathodes and at the anodes of the DEGFC and DMFC were measured, compared and discussed. (c) 2006 Elsevier B.V. All rights reserved. |
| Doi | 10.1016/j.jpowsour.2006.04.141 |
| Wosid | WOS:000241781200055 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science 000241781200055 |
| Is Public | Yes |
| Keyword | direct methanol fuel cell; ethylene glycol; direct-oxidation fuel cell |
| Is Qa | No |