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Structural and Catalytic Characterization of La 0.6 Sr 0.4 MnO 3 Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes

Author

Listed:
  • Enrico Squizzato

    (Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy)

  • Caterina Sanna

    (Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146 Genoa, Italy)

  • Antonella Glisenti

    (Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy)

  • Paola Costamagna

    (Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146 Genoa, Italy)

Abstract

In the present work, structural and catalytic characterization was performed on La 0.6 Sr 0.4 MnO 3 (LSM) nanofibers. The LSM nanofibers were obtained using the electrospinning technique. For comparison, LSM powders with identical composition were characterized as well. The LSM powders were prepared through a self-combustion citrate-based procedure. SEM, EDX, XRD, and BET investigations were carried out on both LSM nanofibers and powders, pointing out the different structural features. The LSM nanofibers showed a higher surface area than the LSM powders and a lower presence of strontium oxide on the surface. Results of the H 2 -Temperature Programmed Reduction (TPR) tests showed evidence of a higher reactivity of the nanofibers compared to the powders. The catalytic characterization was performed utilizing a methane oxidation activity test, revealing a better catalytic performance of the LSM nanofibers: at 800 °C. The methane conversion achieved with the LSM nanofibers was 73%, which compared well with the 50% obtained with powders at 900 °C.

Suggested Citation

  • Enrico Squizzato & Caterina Sanna & Antonella Glisenti & Paola Costamagna, 2021. "Structural and Catalytic Characterization of La 0.6 Sr 0.4 MnO 3 Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes," Energies, MDPI, vol. 14(12), pages 1-13, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:12:p:3602-:d:576568
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    References listed on IDEAS

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    1. E. Perry Murray & T. Tsai & S. A. Barnett, 1999. "A direct-methane fuel cell with a ceria-based anode," Nature, Nature, vol. 400(6745), pages 649-651, August.
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    1. Siyu Lu & Man Zhang & Jie Wu & Wei Kong, 2022. "Performance Investigation on Mono-Block-Layer Build Type Solid Oxide Fuel Cells with a Vertical Rib Design," Energies, MDPI, vol. 15(3), pages 1-12, January.
    2. Attilio Converti, 2021. "Environmental and Energetic Valorization of Renewable Resources," Energies, MDPI, vol. 14(24), pages 1-5, December.

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