Compounds with the perovskite structure have a variety of chemical and physical properties, for example, catalytic oxidation of toxic waste products and conversion of CO2 and H2 into methanol for fuel. However, perovskite synthesis can be challenging, so two different synthetic methods were compared: the glycine-nitrate process and facile co-precipitation. Perovskite structures of the type ABO3 were investigated where A is La, Ce, or Y and B is Fe, Mn, Al, Y, Ca, Sr, Ba, Cu, or Zn. Neither method was found to be superior to the other for all reactions; the glycine nitrate process was superior for LaFeO3, LaMnO3, and CeBaO3 forming very little side product (if any) while co-precipitation led to significant side product formation of La(OH)3 or CeO2. The co-precipitation method was superior for CeFeO3 and CeZnO3 forming the main product when the glycine nitrate process only formed a mixture of binary oxides.

Comparative synthesis between glycine-nitrate process and facile co-precipitation of La- and Ce-based perovskites

251st National Meeting (2016)

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