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Synthesis of lanthanum manganites by combustion method from starch-based precursors

C. MATEI1,2,* , D. BERGER1, J. P. DELOUME1

Affiliation

  1. "Politehnica" University of Bucharest, 1 Polizu street, 011061, Bucharest, Romania
  2. L.A.C.E, Université Claude Bernard, Lyon 1, 43 Bd. du 11 Novembre, F-69622 Villeurbanne, France

Abstract

Lanthanum manganite powders with perovskite structure were obtained by combustion method from starch-based precursors and metal nitrates. The interaction of lanthanum and manganese ions with starch was analysed by infrared spectroscopy. The combustion reactions were studied by thermal analysis. The as-synthesised powders, as well as the annealed samples were characterised by X-ray diffraction and specific surface area measurements (B.E.T. method). The influence of the fuel (starch)/oxidiser (metal nitrates) molar ratio and the annealing temperature on the structure and morphology of the samples were investigated..

Keywords

Lanthanum manganite, Combustion method, Starch.

Submitted at: Nov. 14, 2006
Accepted at: May 15, 2007

Citation

C. MATEI, D. BERGER, J. P. DELOUME, Synthesis of lanthanum manganites by combustion method from starch-based precursors, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 5, pp. 1492-1494 (2007)