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

doi:10.1149/2.032302jes

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^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Composite solid oxide fuel cell (SOFC) anodes consisting of LaSr ₂Fe₂CrO_3-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 language	English (US)
Pages (from-to)	F90-F93
Journal	Journal of the Electrochemical Society
Volume	160
Issue number	2
DOIs	https://doi.org/10.1149/2.032302jes
State	Published - 2013

ASJC Scopus subject areas

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1149/2.032302jes

Cite this

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

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.",

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T1 - Performance and stability of LaSr2Fe2CrO 3-d-based solid oxide fuel cell anodes in hydrogen and carbon monoxide

AU - Bierschenk, D. M.

AU - Haag, J. M.

AU - Poeppelmeier, K. R.

AU - Barnett, S. A.

PY - 2013

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AB - 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.

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