Electrode performance in reversible solid oxide fuel cells

O. A. Marina, L. R. Pederson, M. C. Williams, G. W. Coffey, K. D. Meinhardt, C. D. Nguyen, E. C. Thomsen

Research output: Contribution to journalArticle

165 Citations (Scopus)

Abstract

The performance of several negative (fuel) and positive (air) electrode compositions for use in reversible solid oxide fuel cells capable of operating both as a fuel cell and as an electrolyzer was investigated in half-cell and full-cell tests. Negative electrode compositions studied were a nickel/zirconia cermet (NiYSZ) and lanthanum-substituted strontium titanate/ceria composite, whereas positive electrode compositions examined included mixed ion- and electron-conducting lanthanum strontium ferrite (LSF), lanthanum strontium copper ferrite (LSCuF), lanthanum strontium cobalt ferrite (LSCoF), and lanthanum strontium manganite (LSM). While titanate/ceria and NiYSZ electrodes performed similarly in the fuel cell mode in half-cell tests, losses associated with electrolysis were lower for the titanate/ceria electrode. Positive electrodes gave generally higher losses in the electrolysis mode when compared to the fuel cell mode. This behavior was most apparent for mixed-conducting LSCuF and LSCoF electrodes, and discernible but smaller for LSM; observations were consistent with expected trends in the interfacial oxygen vacancy concentration under anodic and cathodic polarization. Full-cell tests conducted for cells with a thin electrolyte (7 μm YSZ) similarly showed higher polarization losses in the electrolysis than fuel cell direction.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume154
Issue number5
DOIs
Publication statusPublished - 2007
Externally publishedYes

Fingerprint

Lanthanum
Strontium
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
lanthanum
strontium
Electrodes
electrodes
fuel cells
Ferrite
Fuel cells
ferrites
Cerium compounds
electrolysis
Electrolysis
cells
Cobalt
Cermet Cements
cobalt
Chemical analysis

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Marina, O. A., Pederson, L. R., Williams, M. C., Coffey, G. W., Meinhardt, K. D., Nguyen, C. D., & Thomsen, E. C. (2007). Electrode performance in reversible solid oxide fuel cells. Journal of the Electrochemical Society, 154(5). https://doi.org/10.1149/1.2710209

Electrode performance in reversible solid oxide fuel cells. / Marina, O. A.; Pederson, L. R.; Williams, M. C.; Coffey, G. W.; Meinhardt, K. D.; Nguyen, C. D.; Thomsen, E. C.

In: Journal of the Electrochemical Society, Vol. 154, No. 5, 2007.

Research output: Contribution to journalArticle

Marina, OA, Pederson, LR, Williams, MC, Coffey, GW, Meinhardt, KD, Nguyen, CD & Thomsen, EC 2007, 'Electrode performance in reversible solid oxide fuel cells', Journal of the Electrochemical Society, vol. 154, no. 5. https://doi.org/10.1149/1.2710209
Marina OA, Pederson LR, Williams MC, Coffey GW, Meinhardt KD, Nguyen CD et al. Electrode performance in reversible solid oxide fuel cells. Journal of the Electrochemical Society. 2007;154(5). https://doi.org/10.1149/1.2710209
Marina, O. A. ; Pederson, L. R. ; Williams, M. C. ; Coffey, G. W. ; Meinhardt, K. D. ; Nguyen, C. D. ; Thomsen, E. C. / Electrode performance in reversible solid oxide fuel cells. In: Journal of the Electrochemical Society. 2007 ; Vol. 154, No. 5.
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