Structure study of BaCe{sub 0.85}Y{sub 0.15}O{sub 3-Δ} as solid state fuel cell material

The structural details of powder, dense and porous samples of BaCe{sub 0.85}Y{sub 0.15}O{sub 3−δ} (BCY15) used recently in an innovative monolithic design of SOFC were studied from multiple Rietveld analysis of neutron and x-ray diffraction patterns. The 3-layered monolithic assembly built from BCY1...

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Bibliographic Details
Main Authors: Krezhov, K., Malakova, T., Dimitrov, D., Vladikova, D., Raikova, G., Genov, I., Svab, E., Fabian, M., Center for Energy Research, Hungarian Academy of Sciences, Budapest
Format: Conference Proceeding
Language:English
Subjects:
BARIUM COMPOUNDS
CERIUM COMPOUNDS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
HYDROGEN
MEMBRANES
NEUTRON DIFFRACTION
ORTHORHOMBIC LATTICES
POROUS MATERIALS
POWDERS
PROTON CONDUCTIVITY
SOLID OXIDE FUEL CELLS
SOLIDS
SPACE GROUPS
X-RAY DIFFRACTION
YTTRIUM OXIDES
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Summary:The structural details of powder, dense and porous samples of BaCe{sub 0.85}Y{sub 0.15}O{sub 3−δ} (BCY15) used recently in an innovative monolithic design of SOFC were studied from multiple Rietveld analysis of neutron and x-ray diffraction patterns. The 3-layered monolithic assembly built from BCY15 material works as oxide ion conductor in the oxygen space, as proton conductor in the hydrogen area and as mixed conductor in the central membrane. We find that in all the samples of studied BCY15 based materials there are no indications of difference in crystallographic symmetry and the structure refinements did produce best agreement factors in orthorhombic Pnma space group.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4944198