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LiFeO2-LiCoO2-NiO materials for Molten Carbonate Fuel Cell cathodes. Part II. Fabrication and characterization of porous gas diffusion cathodes
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Keramteknologi.
KTH, Skolan för kemivetenskap (CHE), Kemiteknik, Tillämpad elektrokemi.ORCID-id: 0000-0002-2268-5042
2006 (engelsk)Inngår i: Solid State Ionics, ISSN 0167-2738, E-ISSN 1872-7689, Vol. 177, nr 1-2, s. 175-184Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

LiFeO2-LiCoO2-NiO ternary materials are considered as more viable alternatives to lithiated NiO2 in solving the cathode dissolution problem of the Molten Carbonate Fuel Cell (MCFC). This paper presents a detailed description of fabrication and characterization of LiFeO2-LiCoO2-NiO porous gas diffusion cathodes for MCFC, together with a brief discussion on the limitations and trends observed in cathode optimization. Several LiFeO2-LiCoO2-NiO ternary compositions and a LiFeO2-NiO binary composition, were fabricated into porous cathodes by tape casting and sintering. The sintered cathodes were subjected to phase analysis, electrical conductivity and pore structural characterization. A bimodal pore structure, appropriate for the MCFC cathode, could be achieved in sintered cathodes prepared using poreformers and sub-micron size powders. The amount of poreformers significantly influences the pore structure and the electrical conductivity of sintered cathodes. Furthermore, this study indicates the nature of the compromise to be made between the electrical conductivity, phase purity, pore structure and porosity in optimization cathodes for the MCFC application.

sted, utgiver, år, opplag, sider
2006. Vol. 177, nr 1-2, s. 175-184
Emneord [en]
porous gas diffusion electrodes, electrical conductivity, fuel cells, MCFC, LiFeO2-LiCoO2-NiO ternary compositions, licoo2 cathodes, nio cathode, performance
Identifikatorer
URN: urn:nbn:se:kth:diva-15393DOI: 10.1016/j.ssi.2005.10.019ISI: 000234926200024Scopus ID: 2-s2.0-29244468879OAI: oai:DiVA.org:kth-15393DiVA, id: diva2:333434
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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