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3753 |
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Enhanced ionic conductivity for cost-effective solid oxide fuel cells produced by atmospheric plasma spray
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Irene G. Cano / Thermal Spray Centre.CPT. Dpt Materials Science and Engineering. Universitat de Barcelona, Spain Amadeu Concustell* / Thermal Spray Centre. CPT. Dpt. Materials Science and Engineering. Universitat de Barcelona, Spain Jose Maria Guilemany/ Thermal Spray Centre. CPT. Dpt. Material Science and Engineering. Universitat de Barcelona, Spain Miguel Laguna/ University of Zaragoza, Spain Victor Orera/ University of Zaragoza, Spain |
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Solid Oxid Fuel Cells (SOFCs) show a high efficiency in the conversion of chemical energy of fuels, i.e. H2 or CH4, into electricity. Furthermore, SOFCs may be applied as co-generator of heat and electrical power enhancing their efficiency. The use of a simple Atmospheric Plasma Spray (APS) gun to perform all the components of the SOFC may allow the reduction of cost and improve the interlayer adhesion. In this work, three different layers of ceramic materials (anode-YSZ/NiO, electrolyte-YSZ- and cathode-LSM-) were deposited by APS forming a complete self-assembled SOFC. Ionic conductivity of the electrolyte, a key parameter to improve the efficiency of the cell, has been measured and enhanced through densification of this layer. Structural and morphological characterization of the three different ceramic layers has also been carried out and correlated with the efficiency of the produced APS-SOFC. |