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Licensed Unlicensed Requires Authentication Published by De Gruyter December 4, 2019

Synthesis and characterization of layered perovskite cathode materials for SOFC application

Paper presented at the “International Conference on Processing and Characterization of Materials 2018, ICPCM 2018”, 6–8 December 2018, Rourkela, India

  • Gandham Harshitha , Swadesh Kumar Pratihar and Abanti Sahoo


The present study emphasizes the effect on the properties of cathode material by doping Ln = Nd, Pr on A-site cation in double-layered perovskite (AA′B2O5+δ). New cathode compositions Pr1-xNdxBa0.5Sr0.5Co0.5Fe1.5O5+δ (where x = 0, 0.25, 0.5, 0.75 and 1.0) were synthesized by the glycine-nitrate method and their calcination temperature was optimized. Refinement of X-ray diffraction patterns was performed to determine crystallographic information of the obtained phase. These synthesized powders were pelletized, then sintered at 1200–1250°C for microscopic analysis and electrical conductivity measurements. The chemical stability of these compositions with electrolyte gadolinium-doped ceria was also investigated. Pr1-xNdxBa0.5Sr0.5Co0.5 · Fe1.5O5+δ at x = 0 has shown highest conductivity of 315 S cm−1 at 550°C followed by x = 1.0 of 230 S cm−1 at 570°C. The findings of the present study reveal that these compositions may be used as cathode materials in solid oxide fuel cells.

Correspondence address, Gandham Harshitha, Chemical Engineering Department, National Institute of Technology Rourkela, Rourkela-769008, India, Tel.: +91-661-246-2258, E-mail:


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Received: 2019-01-24
Accepted: 2019-06-27
Published Online: 2019-12-04
Published in Print: 2019-12-10

© 2019, Carl Hanser Verlag, München

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