Effect of Fe Substitution on the Structural, Electrical and Dielectric Properties of La0.70Ca0.30MnO3 Cathode for SOFCs
Surinder Paul1, Manokamna2, ShubhpreetKaur3, P.S. Malhi4, Anupinder Singh5, Arvind Kumar6

1Surinder Paul*, I.K. Gujral Punjab Technical University, Kapurthala , Punjab, India
2Manokamna, I.K. Gujral, PTU, Kapurthala , Punjab, India
3Shubhpreet Kaur, MFM Lab, Guru Nanak Dev University, Amritsar , Punjab, India
4P.S.Malhi, Department of Chemistry , Guru Nanak Dev University, Amritsar , Punjab, India
5Anupinder Singh, Department of Physics, Guru Nanak Dev University, Amritsar , Punjab, India
6Arvind Kumar, Department of Applied Sciences, B.C.E.T, Gurdaspur, Punjab, India

Manuscript received on October 16, 2019. | Revised Manuscript received on 25 October, 2019. | Manuscript published on November 10, 2019. | PP: 324-328 | Volume-9 Issue-1, November 2019. | Retrieval Number: A4114119119/2019©BEIESP | DOI: 10.35940/ijitee.A4114.119119
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Abstract: Perovskite solid solutions (La0.70Ca0.30)(FexMn1-x)O3 where x = 0.01, 0.20, 0.30 and 0.40 ceramics were synthesized by solid state reaction route. The structural studies were carried by X-Ray diffraction method and the observed results have indicated that all the prepared samples were crystallized into single phase. The surface morphology was studied by Scanning Electron Microscopy and the images have revealed that grain size has increased with the increasing concentration of Fe. Archimedes principle was used to calculate the density of all the sintered samples and the density values were observed to be in increasing order. The impedance and dielectric properties have been characterized at different ranges of temperature and frequency. The value of electrical conductivity were found to be more than 100 S cm-1 , which indicate that the synthesized material is suitable material for cathode of Solid Oxide Fuel Cell.
Keywords:  Solid Oxide Fuel Cell, Cathode Material, XRD, Conductivity, Magnites
Scope of the Article: Structural Engineering