Cost-effective approach to large-scale synthesis of cobalt ferrite nanoparticles

Karen S. Martirosyan, Long Chang, James Rantschler, Dan Luss, Sakhrat Khizroev, Dmitri Litvinov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Well crystalline cobalt ferrite CoFe2O4 nanoparticles (50-100 nm) were produced using Carbon Combustion Synthesis of Oxides (CCSO). In this process the exothermic oxidation of carbon generates a thermal reaction wave that propagates at a velocity of 0.1-3 mm/s through the solid reactant mixture of cobalt and iron oxides converting it to the cobalt ferrite without any external power consumption. This will enable a reduction in the production price of cobalt ferrite by minimization of the energy consumption. The combustion temperature can be set by proper choice of the amount of carbon added to the mixture of solid reactants. The extensive emission of CO2 enhanced the porosity and friability of product. The as-synthesized ferrites had hard magnetic properties with coercivity 700 Oe and saturation magnetization up to 47 emu/g.

Original languageEnglish (US)
Title of host publication2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings
Pages914-916
Number of pages3
DOIs
StatePublished - 2007
Externally publishedYes
Event2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007 - Hong Kong, China
Duration: Aug 2 2007Aug 5 2007

Publication series

Name2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings

Other

Other2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007
Country/TerritoryChina
CityHong Kong
Period8/2/078/5/07

Keywords

  • Carbon combustion synthesis
  • Magnetic powders
  • Nanomagnetic
  • Nanoparticles

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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