Performance and stability of LaSr2Fe2CrO 3-d-based solid oxide fuel cell anodes in hydrogen and carbon monoxide

D. M. Bierschenk, J. M. Haag, K. R. Poeppelmeier, S. A. Barnett

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Composite solid oxide fuel cell (SOFC) anodes consisting of LaSr 2Fe2CrO3-d (LSFeCr) and Gd0.1Ce0.9O 2-δ (GDC) were evaluated during operation on H2, H2O-Ar-H2, CO, and CO-H2 mixtures. Impedance spectroscopy studies showed three different electrode processes that varied in importance with temperature and fuel composition. The primary impedance response peaked at ̃2 Hz and followed a similar dependence on H2 partial pressure in both H2-H2O-Ar and H2-CO mixtures. The total anode polarization resistance at 800°C increased by a factor of ̃2 on going from pure H2 fuel to pure CO.

Original languageEnglish
Pages (from-to)F90-F93
JournalJournal of the Electrochemical Society
Volume160
Issue number2
DOIs
Publication statusPublished - Apr 2 2013

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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