Fabrication and characterization of microtubular solid oxide cell supported with nanostructured mixed conducting perovskite fuel electrode

Fabrication and characterization of microtubular solid oxide cell supported with nanostructured... Mixed ionic and electronic conducting (MIEC) perovskites demonstrate advantages over Ni-cermet as fuel electrode materials for solid oxide cells (SOCs). However, SOCs are primarily electrolyte-supported planar designs in literature when MIEC perovskite fuel electrodes are employed, which are relatively easy to fabricate but usually have high electrolyte ohmic resistance. Perovskite fuel electrode-supported designs are rarely studied particularly for microtubular SOCs. In this research, (La Sr ) Ti Ni O -Sm Ce O (LSTN-SDC) electrode-supported microtubular cell LSTN-SDC/YSZ/ 0.3 0.7 0.9 0.9 0.1 3-δ 0.2 0.8 1.9 (La Sr ) MnO is fabricated and characterized. The LSTN-SDC microtubular substrate is prepared using an in-house 0.8 0.2 0.95 3-δ built spinneret extrusion system in combination with modified phase inversion method, featuring radially well-aligned microchannels open at the inner surface. A thin YSZ electrolyte of ~15 μm and (La Sr ) MnO electrode of ~25 μm 0.8 0.2 0.95 3-δ are then fabricated on the substrate, respectively. Upon reducing treatment, nickel is exsolved from LSTN grains and uniformly decorated onto grain surface as Ni nanoparticles, and therefore on inner surface of microchannels in the substrate. With CO/CO gas mixture as the fuel, the complicated electro-/chemical reactions are identified in the substrate electrode. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Solid State Electrochemistry Springer Journals

Fabrication and characterization of microtubular solid oxide cell supported with nanostructured mixed conducting perovskite fuel electrode

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Chemistry; Physical Chemistry; Electrochemistry; Energy Storage; Characterization and Evaluation of Materials; Analytical Chemistry; Condensed Matter Physics
ISSN
1432-8488
eISSN
1433-0768
D.O.I.
10.1007/s10008-018-3997-9
Publisher site
See Article on Publisher Site

Abstract

Mixed ionic and electronic conducting (MIEC) perovskites demonstrate advantages over Ni-cermet as fuel electrode materials for solid oxide cells (SOCs). However, SOCs are primarily electrolyte-supported planar designs in literature when MIEC perovskite fuel electrodes are employed, which are relatively easy to fabricate but usually have high electrolyte ohmic resistance. Perovskite fuel electrode-supported designs are rarely studied particularly for microtubular SOCs. In this research, (La Sr ) Ti Ni O -Sm Ce O (LSTN-SDC) electrode-supported microtubular cell LSTN-SDC/YSZ/ 0.3 0.7 0.9 0.9 0.1 3-δ 0.2 0.8 1.9 (La Sr ) MnO is fabricated and characterized. The LSTN-SDC microtubular substrate is prepared using an in-house 0.8 0.2 0.95 3-δ built spinneret extrusion system in combination with modified phase inversion method, featuring radially well-aligned microchannels open at the inner surface. A thin YSZ electrolyte of ~15 μm and (La Sr ) MnO electrode of ~25 μm 0.8 0.2 0.95 3-δ are then fabricated on the substrate, respectively. Upon reducing treatment, nickel is exsolved from LSTN grains and uniformly decorated onto grain surface as Ni nanoparticles, and therefore on inner surface of microchannels in the substrate. With CO/CO gas mixture as the fuel, the complicated electro-/chemical reactions are identified in the substrate electrode.

Journal

Journal of Solid State ElectrochemistrySpringer Journals

Published: Jun 3, 2018

References

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