High surface area nano-sized La0.6Ca0.4MnO3 perovskite powder prepared by low temperature pyrolysis of a modified citrate gel |
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| Authors: | Meysam Soleymani Ahmad Moheb Ezatolah Joudaki |
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| Institution: | (1) CNR-ISTEC, Institute of Science and Technology for Ceramics, National Research Council, via Granarolo 64, Faenza, Italy;(2) Department of Industrial Chemistry and Materials, Bologna University, Viale Risorgimento 4, Bologna, 40126, Italy; |
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| Abstract: | Single phase nanocrystalline La0.6Ca0.4MnO3 powder was synthesized by both the usual and a modified citrate gel precursor method, and the effects on the formation of
homogeneous nano-sized powder with a perovskite structure were investigated. In the modified method, single phase La0.6Ca0.4MnO3 powder with an average particle size of 17.2 nm was obtained when the powder was pyrolyzed at 520°C for 2 h. Its specific
surface area was 40.7 m2 g−1, about 4-fold larger than that of powder made by the usual citrate gel method.
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