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Advances in Materials Science and Engineering
Volume 2013 (2013), Article ID 926540, 5 pages
Research Article

Microstructural Study of Neodmium Nickelate Doped with Strontium Synthesized by Gelatin Method

1Programa de Pós Graduação em Ciência e Engenharia de Materiais, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, RN, Brazil
2Faculdade de Engenharia de Materiais, 68505-080 Marabá, PA, Brazil
3Universidade Federal Rural do Semi-Árido, 59515-000 Angicos, RN, Brazil
4Departamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do Norte, 59078-970 Natal, RN, Brazil

Received 14 December 2012; Revised 22 February 2013; Accepted 24 March 2013

Academic Editor: Steven Suib

Copyright © 2013 R. M. P. B. Oliveira et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In this work nickelate nanoparticles were synthesized using a simple and fast new route, which makes use of gelatin as an organic precursor in order to evaluate the performance of the synthesis method to obtain materials and the influence of the strontium replacement on the structural parameters of the powders. Samples of Nd2-xSrxNiO4 ( and 0.4) were calcined at 700 and at a heating of /min for 4 hours. X-ray powder diffraction patterns were obtained for all the samples, and the Rietveld Method was applied in order to determine the crystallite size using Scherrer's equation, the lattice parameters, and phase concentration. The results obtained using these techniques confirmed that the main crystal structure consists of the distorted K2NiF4-type tetragonal I4/mmm. In addition, scanning electron microscopy images revealed the formation of nanosized particles.