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| dc.contributor | Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica |
|---|---|
| dc.contributor.author | Morales, Miguel |
| dc.contributor.author | Navarro, M. E. |
| dc.contributor.author | Capdevila, X. G. |
| dc.contributor.author | Roa Rovira, Joan Josep |
| dc.contributor.author | Segarra, M. |
| dc.date | 2012-07-11 |
| dc.identifier.citation | Morales, M. [et al.]. Processing of graded anode-supported micro-tubular SOFCs based on samaria-doped ceria via gel-casting and spray-coating. "Ceramics international", 11 Juliol 2012, vol. 38, núm. 5, p. 3713-3722. |
| dc.identifier.citation | 0272-8842 |
| dc.identifier.citation | 10.1016/j.ceramint.2012.01.015 |
| dc.identifier.uri | http://hdl.handle.net/2117/17325 |
| dc.description.abstract | A simple gel-casting method was successfully combined with the spray-coating technique to manufacture graded anode-supported micro-tubular solid oxide fuel cells (MT-SOFCs) based on samaria-doped ceria (SDC) as an electrolyte. Micro-tubular anodes were shaped by a gel-casting method based on a new and simple forming technique that operates as a syringe. The aqueous slurry formulation of the NiO–SDC substrate using agarose as a gelling agent, and the effect of spray-coating parameters used to deposit the anode functional layers (AFLs) and electrolyte were investigated. Furthermore, pre-sintering temperature of anode substrates was systematically studied to avoid the anode–electrolyte delamination and obtain a dense electrolyte without cracks, after co-sintering process at 1450 °C. Despite the high shrinkage of substrate (∼70%), an anode porosity of ∼37% was achieved. MT-SOFCs with ∼2.5 mm of outer diameter, 370 μm thick substrate, 20 μm thick AFLs and 15 μm thick electrolyte were successfully obtained. The use of AFLs with 30:70 and 50:50 wt% NiO–SDC allowed to obtain a continuous gradation of composition and porosity in the anode–electrolyte interface. |
| dc.description.abstract | Peer Reviewed |
| dc.language.iso | eng |
| dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
| dc.rights | info:eu-repo/semantics/openAccess |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
| dc.subject | Fuel cells |
| dc.subject | Piles de combustible |
| dc.title | Processing of graded anode-supported micro-tubular SOFCs based on samaria-doped ceria via gel-casting and spray-coating |
| dc.type | info:eu-repo/semantics/publishedVersion |
| dc.type | info:eu-repo/semantics/article |
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