Electrochemical synthesis of perovskite oxides

Hydroxide precursors to perovskite oxides of the formula, LnMO(3) ( Ln = La, Pr, Nd; M = Al, Mn, Fe) and LaMO3 ( M = Co and Ni) were synthesized by electrogeneration of base by cathodic reduction of the appropriate mixed-metal nitrate solution. The precursors were heat treated at different temperatures to obtain the perovskite oxides. The bath composition for various systems was optimized to get a single-phase oxide product. This method can be adapted as a simple route to the synthesis of perovskite oxide coatings on conducting substrates.