YSr2Fe3-xCoxO8 as a Potential Cathode Materials for SOFCs

Auji Afiqah binti Mohd Kamis; Juliana Hj Zaini; Saifullah Abu Bakar; Chee Ming Lim; Abul Kalam Azad

doi:10.4028/www.scientific.net/AMM.789-790.53

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 789-790YSr2Fe3-xCoxO8 as a Potential Cathode Materials...

YSr₂Fe_3-xCo_xO₈ as a Potential Cathode Materials for SOFCs

Abstract:

The composition YSr₂Fe_3-xCo_xO₈ (for x = 0.5, 3.0) has been investigated as an alternative cathode material for Solid Oxide Fuel Cells (SOFCs). X-ray diffraction (XRD) pattern shows that the composition YSr₂Fe_2.5Co_0.5O₈ crystallizes with cubic symmetry in the space group Pm-3m and YSr₂Co₃O₈ crystallizes with tetragonal symmetry in the space group P4/mmm. Rietveld refinement of XRD data shows the cell parameter of the cubic YSr₂Fe_2.5Co_0.5O₈ is a = b = c = 4.1964(2) (Å) and tetragonal YSr₂Co₃O₈ is a = b = 9.8998(9) (Å) and c = 8.9617(6) (Å). Scanning electron microscropy (SEM) images show porous structure for both the samples, which is favourable as a cathode for Solid Oxide Fuel Cells.

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Applied Mechanics and Materials (Volumes 789-790)

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53-55

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.789-790.53

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Online since:

September 2015

Authors:

Auji Afiqah binti Mohd Kamis*, Juliana Hj Zaini, Saifullah Abu Bakar, Chee Ming Lim, Abul Kalam Azad

Keywords:

Cathode, Perovskites, Solid Oxide Fuel Cells, X-Ray Diffraction

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