LANTHANUM COBALT OXIDE OXIDATION CATALYSTS DERIVED FROM MIXED HYDROXIDE PRECURSORS

被引:59
作者
BARNARD, KR
FOGER, K
TURNEY, TW
WILLIAMS, RD
机构
[1] CSIRO, Division of Materials Science and Technology, P.O. Clayton, Vic. 3168
关键词
D O I
10.1016/0021-9517(90)90302-Z
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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. © 1990.
引用
收藏
页码:265 / 275
页数:11
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