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LiFeO2-LiCoO2-NiO materials for Molten Carbonate Fuel Cell cathodes. Part I: Powder synthesis and material characterization
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. 165-173Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Ternary compositions of LiFeO2LiCoO2 and NiO are expected to posses desirable characteristics for the Molten Carbonate Fuel Cell (MCFC) cathode application. This paper presents a detailed description of the synthesis of LiFeO2-LiCoO2-NiO powders as well as dense sintered materials together with a brief discussion on the common aspects and trends observed in the characterization of these materials for MCFC cathode application. Feasibility of two wet-chemical powder preparation techniques, the Pechini method and the glycine-nitrate method, was investigated to obtain powders with characteristics appropriate for cathode fabrication. Materials in the LiFeO2-NiO binary system and five ternary subsystems, each with a constant molar ratio of LiFeO2/NiO while varying LiCoO2 content, were studied. Powders with characteristics appropriate for MCFC cathode fabrication could be obtained by the Pechini method. The particle size of LiFeO2-LiCoO2-NiO powders considerably depends on the calcination temperature and the material composition. The electrical conductivity study reveals the ability of preparing LiFeO2-LiCoO2-NiO materials with adequate electrical conductivity for MCFC cathode application.

sted, utgiver, år, opplag, sider
2006. Vol. 177, nr 1-2, s. 165-173
Emneord [en]
powder synthesis, electrical conductivity, fuel cells, MCFC, LiFeO2-LiCoO2-NiO ternary compositions, licoo2 cathodes, performance, precursors
Identifikatorer
URN: urn:nbn:se:kth:diva-15392DOI: 10.1016/j.ssi.2005.10.018ISI: 000234926200023Scopus ID: 2-s2.0-29244468292OAI: oai:DiVA.org:kth-15392DiVA, id: diva2:333433
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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