Research Paper

Journal of Nanoparticle Research

, Volume 13, Issue 1, pp 365-374

Superparamagnetic nickel nanoparticles obtained by an organometallic approach

  • E. Ramírez-MenesesAffiliated withDepartamento de Ingeniería y Ciencias Químicas, Universidad IberoamericanaCentro de Investigación en Ciencia Aplicada y Tecnología Avanzada-Instituto Politécnico Nacional, CICATA Altamira Email author 
  • , I. BetancourtAffiliated withInstituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México
  • , F. MoralesAffiliated withInstituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México
  • , V. Montiel-PalmaAffiliated withCentro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos
  • , C. C. Villanueva-AlvaradoAffiliated withCentro de Investigación en Ciencia Aplicada y Tecnología Avanzada-Instituto Politécnico Nacional, CICATA Altamira
  • , M. E. Hernández-RojasAffiliated withInstituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

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

Nanostructures Chemical synthesis Superparamagnetism Magnetic properties Synthesis