Journal of Nanoparticle Research

, Volume 13, Issue 1, pp 365–374

Superparamagnetic nickel nanoparticles obtained by an organometallic approach

  • E. Ramírez-Meneses
  • I. Betancourt
  • F. Morales
  • V. Montiel-Palma
  • C. C. Villanueva-Alvarado
  • M. E. Hernández-Rojas
Research Paper

DOI: 10.1007/s11051-010-0039-7

Cite this article as:
Ramírez-Meneses, E., Betancourt, I., Morales, F. et al. J Nanopart Res (2011) 13: 365. doi:10.1007/s11051-010-0039-7

Abstract

Nickel nanoparticles were prepared by decomposition of the organometallic precursor Ni(COD)2 (COD=cycloocta-1,5-diene) dissolved in organic media in the presence of anthranilic acid as stabilizer. Transmission electron microscopy revealed nickel nanoparticles with a mean size of 4.2 ± 1.1 nm and selected area electron diffraction showed the formation of fcc nickel. FTIR spectroscopy confirmed the presence of modified anthranilic acid on the surface of the Ni nanoparticles suggesting that it is able to interact with the metal particles. The magnetic response of the nanoparticles was established as being of superparmagnetic character, for which a detailed quantitative analysis resulted in a mean magnetic moment of 2652 μB per particle together with a blocking temperature of 32 K.

Keywords

NanostructuresChemical synthesisSuperparamagnetismMagnetic propertiesSynthesis

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • E. Ramírez-Meneses
    • 1
    • 2
  • I. Betancourt
    • 3
  • F. Morales
    • 3
  • V. Montiel-Palma
    • 4
  • C. C. Villanueva-Alvarado
    • 2
  • M. E. Hernández-Rojas
    • 3
  1. 1.Departamento de Ingeniería y Ciencias QuímicasUniversidad IberoamericanaMexicoMexico
  2. 2.Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada-Instituto Politécnico Nacional, CICATA AltamiraAltamiraMexico
  3. 3.Instituto de Investigaciones en MaterialesUniversidad Nacional Autónoma de MéxicoMexicoMexico
  4. 4.Centro de Investigaciones QuímicasUniversidad Autónoma del Estado de MorelosCuernavacaMexico