Frontiers in Chemistry (Dec 2018)

Impregnation of High-Magnetization FeCo Nanoparticles in Mesoporous Silicon: An Experimental Approach

  • Mathieu Lepesant,
  • Mathieu Lepesant,
  • Benjamin Bardet,
  • Benjamin Bardet,
  • Lise-Marie Lacroix,
  • Pierre Fau,
  • Cyril Garnero,
  • Cyril Garnero,
  • Bruno Chaudret,
  • Katerina Soulantica,
  • Thomas Defforge,
  • Damien Valente,
  • Caroline Andreazza,
  • Jérôme Billoué,
  • Patrick Poveda,
  • Gaël Gautier

DOI
https://doi.org/10.3389/fchem.2018.00609
Journal volume & issue
Vol. 6

Abstract

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This paper deals with the synthesis of high-magnetization porous silicon-based nanocomposites. Using well-controlled organometallic synthesis of ferromagnetic FeCo nanoparticles, the impregnation of mesoporous silicon has been performed by immersion of porous silicon in a colloidal solution. The technique was optimized by controlling the temperature, the immersion duration, and the solvent nature. The characterization of the nanocomposites showed a homogeneous filling of the pores and a high magnetization of 135 emu/cm3. Such composites present a great interest for many applications including data storage, medical instrumentations, catalysis, or electronics.

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