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Facile Synthesis of Lanthanum Strontium Cobalt Ferrite (LSCF) Nanopowders Employing an Ion-Exchange Promoted Sol-Gel Process

Author

Listed:
  • Sri Rahayu

    (School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
    Center for Materials Technology, Agency for Assessment and Application of Technology, Puspiptek Building 224 Tangerang Selatan, Serpong, South Tangerang 15314, Indonesia)

  • Adi Ab Fatah

    (School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK)

  • Girish M. Kale

    (School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK)

Abstract

The perovskite nanopowders of lanthanum strontium cobalt ferrite (LSCF) have been synthesized using the alginate mediated ion-exchange process. This perovskite-based material is a promising cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs) due to its high electrical conductivity, low polarizability, high catalytic activity for oxygen reduction, enhanced chemical stability at an elevated temperature in high oxygen potential environment and high compatibility with the ceria based solid electrolytes. Phase pure LSCF 6428, LSCF 6455, and LSCF 6482 corresponding to La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ , La 0.6 Sr 0.4 Co 0.5 Fe 0.5 O 3-δ , and La 0.6 Sr 0.4 Co 0.8 Fe 0.2 O 3-δ , respectively were successfully synthesized. The simultaneous thermal analysis (DSC-TGA) and XRD were used to determine the optimum calcination temperature for the dried ion-exchanged beads. Single phase nanopowders of LSCF (6428, 6455, and 6482) have been successfully prepared at a calcination temperature of 700 °C. The TGA analysis showed that every ton of LSCF-ALG dried beads can potentially yield 360 kg of LSCF nanopowders suggesting a potential for scaling-up of the process of manufacturing nanopowders of LSCF.

Suggested Citation

  • Sri Rahayu & Adi Ab Fatah & Girish M. Kale, 2021. "Facile Synthesis of Lanthanum Strontium Cobalt Ferrite (LSCF) Nanopowders Employing an Ion-Exchange Promoted Sol-Gel Process," Energies, MDPI, vol. 14(7), pages 1-10, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:7:p:1800-:d:523144
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    References listed on IDEAS

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    1. Choudhury, Arnab & Chandra, H. & Arora, A., 2013. "Application of solid oxide fuel cell technology for power generation—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 20(C), pages 430-442.
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    Cited by:

    1. Bahman Amini Horri, 2022. "Special Issue “Emerging Materials and Fabrication Methods for Solid Oxide Fuel Cells (SOFCs)”," Energies, MDPI, vol. 15(9), pages 1-6, April.

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