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Structural characterisation of lanthanum aluminate synthetized by the Pechini method

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Popovici I C, V. Ciupina, G. Prodan, M. A. Gîrţu

Editorial: Journal of Optoelectronics and Advanced Materials, 10(11), p.2942-2946, 2008.

Rezumat:

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 high-resolution electron microscopy (HRTEM). The TEM photographs reveal nano-particles in the size range 20 – 90 nm with a mean diameter of about 50 nm.

Cuvinte cheie: Pechini method, LaAlO3, XRD, TG-DTG, SAED, HRTEM