Raman spectra studies of inner “anode | electrolyte” interface on ESC and ASC SOFCs
In this work we present the results of in-situ case studies of fuel
oxidation at the SOFC anode for anode-supported cells with thinfilm
electrolyte deposited by magnetron sputtering technique in
comparison with studies carried out on optically transparent singlecrystal
membrane based electrolyte-supported model SOFC.
Changes of the valence state of Ce ions were studied under
different current loads applied to the cell, these changes were
indicated in the Raman spectra obtained from inner interface of
electrolyte membrane and anode electrode. Area of the
corresponding peak in Raman spectra of ceria was studied for
different working conditions for both cells constructions. Special
processing technique gave opportunity to obtain more relevant data.