AUTHOR=Lepesant Mathieu, Bardet Benjamin, Lacroix Lise-Marie, Fau Pierre, Garnero Cyril, Chaudret Bruno, Soulantica Katerina, Defforge Thomas, Valente Damien, Andreazza Caroline, Billoué Jérôme, Poveda Patrick, Gautier Gaël TITLE=Impregnation of High-Magnetization FeCo Nanoparticles in Mesoporous Silicon: An Experimental Approach JOURNAL=Frontiers in Chemistry VOLUME=6 YEAR=2018 URL=https://www.frontiersin.org/articles/10.3389/fchem.2018.00609 DOI=10.3389/fchem.2018.00609 ISSN=2296-2646 ABSTRACT=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.