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Type: Artigo de periódico
Title: A simple method to obtain Fe-doped CeO2 nanocrystals at room temperature
Author: Almeida, JMA
Santos, PEC
Cardoso, LP
Meneses, CT
Abstract: Ce1-xFexO2 nanocrystals (0 < x < 0.05) have been synthesized at room temperature using the coprecipitation method. The samples were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and magnetization measurements as a function of field. The XRD results and Rietveld refinement analysis show that all particles have a crystalline structure isomorphous to the host structure (CeO2), with average size of 9 nm. This information was also confirmed by TEM images in which it is shown that the particles present spherical-like shape. The magnetic measurements indicated that the Fe-doped samples exhibit a weak ferromagnetism at room temperature, which increases with the increasing of the Fe content. (c) 2012 Elsevier B.V. All rights reserved.
Subject: Nanoparticle
Co-precipitation method
Magnetic property
X-ray diffraction
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.jmmm.2012.09.007
Date Issue: 2013
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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