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Synthesis and characterization of NiMn(2)O(4) nanoparticles using gelatin as organic precursor

By J. M. A. ALMEIDA, C. T. MENESES, A. S. de MENEZES, R. F. JARDIM and J. M. SASAKI

Abstract

Nanoparticles of NiMn(2)O(4) were successfully obtained by mixing gelatin and inorganic salts NiCl(2) center dot 6H(2)O and MnCl(2) center dot 4H(2)O in aqueous solution. The mixture has been synthesized at different temperatures and resulted in NiMn(2)O(4) nanoparticles with crystallites size in the range of 14-44 nm, as inferred from X-ray powder diffraction (XRPD) data. We have also observed that both the average crystallite size and the unit cell parameters increase with increasing synthesis temperature. Magnetic measurements confirmed the presence of a magnetic transition near 110K. (C) 2008 Published by Elsevier B.V

Topics: nanoparticle, gelatin, NiMn(2)O(4), X-ray diffraction, rietveld refinement, PHYSICAL-PROPERTIES, DIFFRACTION, TRANSITION, Materials Science, Multidisciplinary, Physics, Condensed Matter
Publisher: ELSEVIER SCIENCE BV
Year: 2013
OAI identifier: oai:agregador.ibict.br.RI_UNICAMP:oai:unicamp.sibi.usp.br:SBURI/1008
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