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Structural characterisation of lanthanum aluminate synthetized by the Pechini method

I. CARAZEANU POPOVICI1,* , V. CIUPINA2, G. PRODAN2, M. A. GÎRŢU2

Affiliation

  1. Ovidius University, Chemistry Department, Bd. Mamaia 124, Constanţa, Romania
  2. Ovidius University, Electron Microscopy Laboratory, Bd. Mamaia 124, Constanţa, Romania

Abstract

Single phase LaAlO3 fine particles were prepared by Pechini method at low-temperature. The method involved the mixing of the nitrates of La and Al, with a chelating agent, a mix 1:1 of citric acid and ethylene glycol. The powders were studied by several physical characterization techniques such as X-ray diffraction (XRD), thermal analysis (TG-DTG) and highresolution electron microscopy (HRTEM). The TEM photographs reveal nano-particles in the size range 20 – 90 nm with a mean diameter of about 50 nm..

Keywords

Pechini method, LaAlO3, XRD, TG-DTG, SAED, HRTEM.

Submitted at: Sept. 1, 2008
Accepted at: Nov. 11, 2008

Citation

I. CARAZEANU POPOVICI, V. CIUPINA, G. PRODAN, M. A. GÎRŢU, Structural characterisation of lanthanum aluminate synthetized by the Pechini method, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 11, pp. 2942-2946 (2008)