Lanthanum cobalt oxide oxidation catalysts derived from mixed hydroxide precursors

K. R. Barnard, K. Foger, T. W. Turney, R. D. Williams

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Simultaneous oxidation/co-precipitation of an equimolar mixture of La(III) and Co(II) nitrates afforded a hydroxide-containing gel, which was converted to LaCoO3 on calcination at 600°C. A material with surface area in excess of 40 m2/g has been produced, provided the hydroxide gel was washed with a nonaqueous solvent before dehydration. The resultant LaCoO3 perovskite sintered readily on heating above 700°C. Rates for oxidation for CO and propane showed a linear dependence upon the surface area of LaCoO3 in the temperature range RT to 600°C.

Original languageEnglish
Pages (from-to)265-275
Number of pages11
JournalJournal of Catalysis
Issue number2
Publication statusPublished - 1 Jan 1990
Externally publishedYes

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