Advertisement

Journal of Applied Electrochemistry

, Volume 37, Issue 6, pp 711–716 | Cite as

Electro-osmotic drag of methanol in proton exchange membranes

  • T. Tschinder
  • T. Schaffer
  • S. D. Fraser
  • V. Hacker
Original Paper

Abstract

A good understanding of the fundamental transport phenomena of water and methanol in PSA (Perfluoro Sulfonic Acid) membranes is one of the keys in developing efficient direct methanol fuel cells (DMFCs). Electro-osmosis, being one of the most important water and methanol transport mechanisms in DMFCs, has been investigated with a number of different proton exchange membranes. Two aspects were of particular interest: firstly, the interdependencies between the electro-osmotic drag coefficient and methanol concentration and temperature, and secondly the interdependence between the electro-osmotic drag coefficient and current density. The results of these investigations are compared to published data.

Keywords

Electro-osmosis Electro-osmotic drag coefficient Proton exchange membrane Direct methanol fuel cell DMFC 

Notes

Acknowledgements

The authors appreciate the cooperation and support of the Christian Doppler Society (CDG), Vienna and the AVL List GmbH, Graz, for this project.

References

  1. 1.
    Verbrugge MW, Hill RF (1990) J Electrochem Soc 137(4):1131CrossRefGoogle Scholar
  2. 2.
    Staude E (1992) Membranen und Membranprozesse - Grundlagen und Anwendungen Eberhard Staude, VCH Verlagsgesellschaft mbH, WeinheimGoogle Scholar
  3. 3.
    Hacker V (2004) Brennstoffzellensysteme, Habilitation, Graz University of TechnologyGoogle Scholar
  4. 4.
    Schaffer T, Hacker V, Besenhard JO (2006) J Power Sources 153:217CrossRefGoogle Scholar
  5. 5.
    Schaffer T, Tschinder T, Hacker V, Besenhard J (2006) J Power Sources 153:210CrossRefGoogle Scholar
  6. 6.
    Zawodzinski TA, Derouin C, Radzinski S, Sherman RJ, Smith VT, Springer TE, Gottesfeld S (1993) J Electrochem Soc 140(4):1041CrossRefGoogle Scholar
  7. 7.
    Harff K (1982) Elektroosmose bei wässrigen Elektrolytlösungen, Doctoral Thesis, RTWH - Technische Hochschule AachenGoogle Scholar
  8. 8.
    Schaffer T, Hacker V, Hejze T, Tschinder T, Besenhard J, Prenninger P (2005) J Power Sources 145:188CrossRefGoogle Scholar
  9. 9.
    Öztürk N (2001) Ionische Leitfähigkeit und Massenspektrometrische Bestimmung der Methanol- Diffusion und des “Electroosmotic Drag” an protonenleitenden Membranen für die Direkt-Methanol-Brennstoffzelle (DMFC) Institut für Chemische Technologie, FHTG MannheimGoogle Scholar
  10. 10.
    Weast RC, Astle MJ (eds) (1981–1982) CRC Handbook of Chemistry and Physics, 62nd edn, Boca Raton, Florida, CRC Press, Inc., E-60Google Scholar
  11. 11.
    Weast RC, Astle MJ (eds) (1981–1982) CRC Handbook of Chemistry and Physics, 62nd edn, Boca Raton, Florida, CRC Press, Inc., E-61Google Scholar
  12. 12.
    Helfferich F (1959) lonenaustauscher Bd 1.Verlag Chemie, WeinheimGoogle Scholar
  13. 13.
    Springer TE, Zawodzinski TA, Gottesfeld S (1991) J Electrochem Soc 138(8):2334CrossRefGoogle Scholar
  14. 14.
    Zawodzinski TA, Springer TE, Davey J, Jestel R, Lopez C, Valerio J, Gottesfeld S (1993) J Electrochem Soc 140(7):1981CrossRefGoogle Scholar
  15. 15.
    Zawodzinski TA, Davey J, Valerio J, Gottesfeld S (1995) Electrochim Acta 40:297CrossRefGoogle Scholar
  16. 16.
    Ise M (2000) Polymer-Elektrolyt-Membranen: Untersuchungen zur Mikrostruktur und zu den Transporteigenschaften für Protonen und Wasser, Max-Planck-Institut für Festkörperforschung, StuttgartGoogle Scholar
  17. 17.
    Paddison SJ, Paul R, Zawodzinski TA (2000) Electrochemical Society Proceedings 98–27:106Google Scholar
  18. 18.
    Ren X, Henderson W, Gottesfeld S (1997) J Electrochem Soc 144(9):L267CrossRefGoogle Scholar
  19. 19.
    Okada T, Xie G, Meeg M (1998) Electrochim Acta 14–15:2141CrossRefGoogle Scholar
  20. 20.
    Vielstich W, Larum A, Gasteiger H (2003) Handbook of Fuel Cells 3:382Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • T. Tschinder
    • 1
  • T. Schaffer
    • 1
  • S. D. Fraser
    • 1
  • V. Hacker
    • 1
  1. 1.CD-Laboratory for Fuel Cell Systems, Institute for Chemistry and Technology of Inorganic MaterialsGraz University of TechnologyGrazAustria

Personalised recommendations