Solid oxide fuel cell cathode with oxygen-reducing layer

Surdoval, Wayne A.; Berry, David A.; Shultz, Travis

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DOE OSTI · 1432705

Solid oxide fuel cell cathode with oxygen-reducing layer

Surdoval, Wayne A.·Berry, David A.·Shultz, Travis

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Abstract

The disclosure provides a SOFC comprised of an electrolyte, anode, and cathode, where the cathode comprises an MIEC and an oxygen-reducing layer. The oxygen-reducing layer is in contact with the MIEC, and the MIEC is generally between and separating the oxygen-reducing layer and the electrolyte. The oxygen-reducing layer is comprised of single element oxides, single element carbonates, or mixtures thereof, and has a thickness of less than about 30 nm. In a particular embodiment, the thickness is less than 5 nm. In another embodiment, the thickness is about 3 monolayers or less. The oxygen-reducing layer may be a continuous film or a discontinuous film with various coverage ratios. The oxygen-reducing layer at the thicknesses described may be generated on the MIEC surface using means known in the art such as, for example, ALD processes.

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BibTeX RIS

Surdoval, Wayne A., Berry, David A., Shultz, Travis. 2018-04-03. Solid oxide fuel cell cathode with oxygen-reducing layer. https://www.osti.gov/biblio/1432705

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