This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1016/j.powsour.2007.04.072 in citations.
Bifunctional activation of a direct methanol fuel cell
Bifunctional activation of a direct methanol fuel cell
We report a novel method for performance recovery of direct methanol fuel cells. Lowering of air flow rate below a critical value turns the cell into bifunctional regime, when the oxygen-rich part of the cell generates current while the rest part works in electrolysis mode (electrolytic domain). Upo...
Saved in:
Personal Name(s): | Kulikovsky, A. A. |
---|---|
Schmitz, H. / Wippermann, K. / Mergel, J. / Fricke, B. / Sanders, T. / Sauer, D.U. | |
Contributing Institute: |
Brennstoffzellen; IEF-3 JARA-ENERGY; JARA-ENERGY |
Published in: | Journal of power sources, 173 (2007) S. 420 - 423 |
Imprint: |
New York, NY [u.a.]
Elsevier
2007
|
Physical Description: |
420 - 423 |
DOI: |
10.1016/j.powsour.2007.04.072 |
Document Type: |
Journal Article |
Research Program: |
Rationelle Energieumwandlung |
Series Title: |
Journal of Power Sources
173 |
Subject (ZB): | |
Publikationsportal JuSER |
We report a novel method for performance recovery of direct methanol fuel cells. Lowering of air flow rate below a critical value turns the cell into bifunctional regime, when the oxygen-rich part of the cell generates current while the rest part works in electrolysis mode (electrolytic domain). Upon restoring the normal (super-critical) air flow rate, the galvanic performance of the electrolytic domain increases. This recovery effect is presumably attributed to Pt surface cleaning on the cathode with the simultaneous increase in catalyst utilization on the anode. (C) 2007 Elsevier B.V. All rights reserved. |