Structural and Catalytic Characterization of La0.6Sr0.4MnO3 Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes

Squizzato, Enrico; Sanna, Caterina; Glisenti, Antonella; Costamagna, Paola

doi:10.3390/en14123602

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Structural and Catalytic Characterization of La_0.6Sr_0.4MnO₃ Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes

¹

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

²

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

^*

Author to whom correspondence should be addressed.

Energies 2021, 14(12), 3602; https://doi.org/10.3390/en14123602

Submission received: 27 May 2021 / Revised: 8 June 2021 / Accepted: 10 June 2021 / Published: 17 June 2021

(This article belongs to the Special Issue Environmental and Energetic Valorization of Renewable Resources)

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Abstract

In the present work, structural and catalytic characterization was performed on La_0.6Sr_0.4MnO₃ (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 H₂-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.

Keywords: electrospinning; nanofibers; fuel anode; H2-Temperature Programmed Reduction (TPR); Intermediate Temperature-Solid Oxide Fuel Cell (IT-SOFC)

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MDPI and ACS Style

Squizzato, E.; Sanna, C.; Glisenti, A.; Costamagna, P. Structural and Catalytic Characterization of La_0.6Sr_0.4MnO₃ Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes. Energies 2021, 14, 3602. https://doi.org/10.3390/en14123602

AMA Style

Squizzato E, Sanna C, Glisenti A, Costamagna P. Structural and Catalytic Characterization of La_0.6Sr_0.4MnO₃ Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes. Energies. 2021; 14(12):3602. https://doi.org/10.3390/en14123602

Chicago/Turabian Style

Squizzato, Enrico, Caterina Sanna, Antonella Glisenti, and Paola Costamagna. 2021. "Structural and Catalytic Characterization of La_0.6Sr_0.4MnO₃ Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes" Energies 14, no. 12: 3602. https://doi.org/10.3390/en14123602

APA Style

Squizzato, E., Sanna, C., Glisenti, A., & Costamagna, P. (2021). Structural and Catalytic Characterization of La_0.6Sr_0.4MnO₃ Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes. Energies, 14(12), 3602. https://doi.org/10.3390/en14123602

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Structural and Catalytic Characterization of La_0.6Sr_0.4MnO₃ Nanofibers for Application in Direct Methane Intermediate Temperature Solid Oxide Fuel Cell Anodes

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