METHOD FOR PREPARATION OF MIXED CERIUM AND ZIRCONIUM OXIDES Russian patent published in 2009 - IPC B01J21/06 B01J23/10 C25D11/26 

Abstract RU 2367519 C1

FIELD: chemistry.

SUBSTANCE: method for preparation of mixed cerium and zirconium oxides using insoluble zirconium sulphate and soluble cerium salt lies in the obtaining of mixed cerium and zirconium oxides by plasma electrochemical method in galvanostatic mode with usage of unipolar direct or unipolar impulse current with effective density 5-10 A/dm2 during 10-40 min on the substrate made from titanium or its alloy, from electrolyte containing zirconium sulphate Zr(SO4)2·4H2O and cerium sulphate Ce2(SO4)3 taken in mole ratio from 1:3 to 3:1 at zirconium and cerium sulphates concentration in electrolyte not less than 0.01 mole/l.

EFFECT: preparation of mixed cerium and zirconium oxides in the form of thin layers fixed on metal substrate in one-stage simple method.

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RU 2 367 519 C1

Authors

Rudnev Vladimir Sergeevich

Jarovaja Tat'Jana Petrovna

Nedozorov Petr Maksimovich

Dates

2009-09-20Published

2008-05-19Filed