Synthesis, characterization, and magnetic properties of dendrimer-encapsulated nickel nanoparticles containing <150 atoms

Marc R. Knecht, Joaquin C. Garcia-Martinez, Richard M. Crooks

Research output: Contribution to journalArticle

81 Scopus citations

Abstract

The synthesis and magnetic properties of Ni nanoparticles containing < 150 atoms are described. These materials are prepared in an organic solvent using hydrophobic dendrimers as templates, which results in a high degree of size monodispersity. The dendrimer-encapsulated nanoparticles were characterized by UV-vis spectroscopy, transmission electron microscopy, and energy dispersive spectroscopy. Magnetic (SQUID) studies indicate that the particles are ferromagnetic at 5 K with magnetic saturations that vary depending upon the particle size.

Original languageEnglish (US)
Pages (from-to)5039-5044
Number of pages6
JournalChemistry of Materials
Volume18
Issue number21
DOIs
StatePublished - Oct 17 2006
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this