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TitleSynthesis and properties of dense nickel and cobalt zirconia cermet anodes for solid oxide fuel cells
Publication TypeJournal Article
Year of Publication1996
AuthorsSammes, N.M., Brown M., and Brown I.W.M.
JournalJournal of Materials Science
Pagination6069 - 6072
Date Published1996
ISSN00222461 (ISSN)
KeywordsAnodes, Catalyst activity, Ceramic matrix composites, Cermets, Cobalt, Fuel cells, Metallic matrix composites, Nickel, Porosity, Porous nickel zirconia cermets, Sintering, Solid oxide fuel cells, Synthesis (chemical), Zirconia
AbstractPorous Ni/Zirconia cermets have been traditionally used as anodes in solid oxide fuel cell configurations. They show excel lent catalytic activity towards hydrogen oxidation as well as a number of other attributes. However, they are prone to sintering during long term operation, thus causing a drop in the efficiency of the cell. This paper describes the fabrication and properties of a dense cermet which, we suggest, may act as an intermediate layer between the electrolyte and the porous anode and possibly reduce anode degradation. Co and Ni based cermet systems were investigated and a 30 vol % Co/zirconia system could be fabricated with less than 20% porosity after being sintered at 1300°C. © 1996 Chapman & Hall.

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