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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 14/2020

01.06.2020

Modified polyol-mediated synthesis of Sr- and W-substituted La2Mo2O9 solid electrolyte for solid oxide fuel cells

verfasst von: Raghvendra Pandey, Saurabh Singh, Prabhakar Singh

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 14/2020

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Abstract

The oxide-ion conducting system (La1−xSrx)2Mo1.5W0.5O9−δ with x = 0.00, 0.02, 0.05 and 0.07 were prepared for the first time by modified polyol-mediated synthesis method. The structural properties and electrical conductivity of this system (La1−xSrx)2Mo1.5W0.5O9−δ were studied using XRD, DT/TGA, SEM, XPS, BET, TEC and EIS characterization techniques. It was found that doping of Sr and W together at La and Mo site, respectively, stabilizes the cubic β-phase of La2Mo2O9 at room temperature. The electrical conductivity of system was found to be maximum for x = 0.05 doping of Sr at La site in (La1−xSrx)2Mo1.5W0.5O9−δ. In dilatometry measurement, TEC was found to be 13.9 × 10–6/°C for the compositions x = 0.05 which is compatible with a few other reported components of the intermediate temperature solid oxide fuel cell (IT-SOFC). This synthesis route also helps for the preparation of fine grains, high specific surface area and reduced particle size at relatively lower calcination temperatures.
Vorheriger Artikel Resource utilization of chlorosilane residual liquid to prepare nano-silica in reverse microemulsion system
Nächster Artikel Enhanced electrochemical performance of MoS2/PPy nanocomposite as electrodes material for supercapacitor applications

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Metadaten
Titel
Modified polyol-mediated synthesis of Sr- and W-substituted La2Mo2O9 solid electrolyte for solid oxide fuel cells
verfasst von
Raghvendra Pandey
Saurabh Singh
Prabhakar Singh
Publikationsdatum
01.06.2020
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 14/2020
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-020-03681-4

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