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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 9, Number 5
May 20, 1988 

Stoichiometry, Thermal Stability and Reducibility of Perovskite-Type Mixed Oxide LaBO3 (B = Fe, Co, Ni)
Il-Hyun Park*, Hyung-Pyo Lee
The titled properties on reduction of the perovskite LaBO3 (B = Fe, Co, Ni) have been investigated by means of temperature-programmed reduction, isothermal reduction and X-ray diffraction methods. Nominal composition of LaFeO3.18, LaCoO3.00 and LaNiO2.92 are determined. Reduction reaction of these mixed oxides differed according to B-site transition metal and thermal stability on reduction decreased as following order: LaFeO3.18 > LaCoO3.00 > LaNiO2.92. From the results of isothermal reaction, kinetics on reduction of the perovskite has been discussed in detail.
283 - 288
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