Peroxo-oxalate preparation of doped barium titanate

The peroxo-oxalate complexation method is a method that can be used for the preparation of doped barium titanate, In this paper we focus on BaTi0.91Zr 0.09O3, which can be used for discharge capacitors in lamp starters, The pr eparation method described here is based on the complexation and subsequent precipitation in basic environment of Ba, Ti, and Zr ions with hydrogen pe roxide and oxalate, The influence of several process parameters, like preci pitation temperature and pH, on powder properties is described. A single-ph ase perovskite crystal structure is obtained after calcination starting fro m a chloride precursor solution using a precipitation temperature of 40 deg rees C and a pH of 9. Because the peroxo-oxalate process starts with inexpe nsive chlorides and is performed in air, the peroxo-oxalate process is suit able for the commercial production of doped barium titanate.