Manufacturing of anode-supported tubular SOFCs by a new shaping technique using aqueous gel-casting
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10.1016/j.jpowsour.2011.10.059
Inclou dades d'ús des de 2022
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hdl:2117/17150
Tipus de documentArticle
Data publicació2011-02-15
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Abstract
A new gel-casting technique has been successfully developed to obtain tubular NiO–SDC anode-supported solid oxide fuel cells (SOFCs). Rheological parameters of the ceramic particle suspensions, directly influencing on casting and production, were investigated as a function of process parameters: solid loading, dispersant and agarose amounts. Afterwards, a SDC (Sm0.2Ce0.8O1.9) electrolyte film was deposited on NiO–SDC tubular anode substrates by colloidal spray-coating technique and co-sintering at 1400 °C for 5 h. The shrinkage and microstructure of the sintered cell components were studied. SEM results revealed high porosities of anode (40%) and cathode (La0.5Sr0.5CoO3, LSC), a dense SDC film electrolyte with a thickness of 30 μm and a good adhesion between the electrolyte, and the anode and cathode.
Descripció
Anode-supported tubular SOFCs fabricated by using aqueous gel-casting. ► Manufacturing is one of the major focuses of SOFC cost reduction. ► Gel-casting is a method with a short shaping time, high yields and low-cost equipment ► A suitable relation of slurry viscosity, porosity and strength for tubular anodes was found.
CitacióNavarro, M.E. [et al.]. Manufacturing of anode-supported tubular SOFCs by a new shaping technique using aqueous gel-casting. "Journal of power sources", 15 Febrer 2011, vol. 200, p. 45-52.
ISSN0378-7753
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S0378775311020520#
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manufacturing.pdf | 1,615Mb | Accés restringit |