Enhanced Performance of LSCF as a Cathode Material for Solid Oxide Fuel Cell By Using Gamma Radiation

Document Type : Original Article

Authors

1 Department of Solids, National Center of Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt

2 Department of Petrolum&Mining, Faculty of Engineering, Al-Azhar University, Cairo, Egypt

3 Department f Steel,Central Metallurgical Research and Development Institute, CMRDI, Cairo, Egypt; TIMS, Cairo, Egypt

Abstract

Gamma radiation has always an impact on semiconductor material by altering its physico-chemical properties. In this paper nano sized crystallites of La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) which is a promising cathode material for intermediate temperature-solid oxide fuel cells (IT-SOFCs).LSFC was synthesized by sol-gel technique and modified sol-gel technique by Gamma irradiation methods. The structure, morphology, elemental analyses and surface area were determined by X-ray diffraction (XRD), Field emission scanning electron microscope (FESEM), scanning transmission electron microscope (STEM) analysis and Brunauer-Emmett-Teller (BET) method. Also Dc conductivity was measured from room temperature up to 500 oC. Results showed that LSCF cathode material has single phase perovskite product with porous structure. The morphology of the samples synthesized by irradiation method were more porous structure ,higher surface area and oxygen vacancies as compared to un-irradiated sample. So, irradiation technique has a pronounced effective role in improvement microstructure of LSCF cathode material.

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Egyptian Journal of Chemistry
Volume 65, Issue 132 - Serial Number 13
Special Issue: Chemistry and Global Challenges (Part B)
December 2022
Pages 585-592

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History

  • Receive Date: 27 April 2022
  • Revise Date: 23 May 2022
  • Accept Date: 12 June 2022

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