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

Enrico Squizzato, Caterina Sanna, Antonella Glisenti and Paola Costamagna
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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

Energies, 2021, vol. 14, issue 12, 1-13

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.

Keywords: electrospinning; nanofibers; fuel anode; H2-Temperature Programmed Reduction (TPR); Intermediate Temperature-Solid Oxide Fuel Cell (IT-SOFC) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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