Production of stable cobalt and nickel nanoparticles by cvs

Johanna Forsman, Jorma Jokiniemi, Ari Auvinen, Unto Tapper

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Abstract

High mass concentrations of high-purity cobalt and nickel nanoparticles with primary particles diameter below 100 nm were produced with aerosol method. The size distribution of the primary particles was narrow. The particles were fcc single or twin crystal with little neck formation. The oxidation of the particles was slow, probably because there were few defects in the crystals structure and a thin protective hydrogen chloride layer. Chain-like agglomerates were formed likely because the particles were ferromagnetic. The process is promising for scaling up because it is a one-step process and temperatures are much lower than for cobalt evaporation techniques and no expensive precursor or additives are required.
Original languageEnglish
Title of host publicationNanotech Northern Europe 2007 (NTNE)
Place of PublicationHelsinki
Pages83-84
Publication statusPublished - 2007
EventNanotech Northern Europe 2007 - Helsinki, Finland
Duration: 27 May 200729 May 2007

Conference

ConferenceNanotech Northern Europe 2007
CountryFinland
CityHelsinki
Period27/05/0729/05/07

Keywords

  • cobalt
  • nickel
  • nanoparticle
  • hydrogen reduction

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