Formation of crystalline metal oxides at low temperatures

Details Formation of crystalline metal oxides at low temperatures Formation of crystalline metal oxides at low temperatures

1992-09-18

1994-05-03

Bell, Mark L.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

428598, 501134, C01F 100

Patent

active

053086015

ABSTRACT:
Metal oxides are formed at low temperatures by the process of providing a class of divalent metal hydroxycarboxylates designed to react with metal alkoxide compounds such as B(OR').sub.4, where B=Ti, Zr, Sn and R'=an alkyl group with the elimination of two equivalents of alcohol to form species with integral or non-integral stoichiometry. The reaction produces an intermediate compound which after thermolysis at 350.degree. C. in O.sub.2, results in formation of crystalline perovskite phase materials of general formula ABO.sub.3, A.sub.x A'.sub.1-x BO.sub.3 and AB.sub.x B'.sub.1-x O.sub.3.

REFERENCES:
patent: 4968498 (1990-11-01), Wautier et al.
patent: 5122360 (1992-06-01), Harris et al.
patent: 5196388 (1993-03-01), Shyu

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