Study on Hollow Microspheres with Conductive and Magnetic Properties

Abstract:

Intact Fe₃O₄/polyaniline (PANI) composite hollow microspheres were prepared by using hollow glass microspheres (HGS) as substrate. Fe₃O₄ nanoparticles were synthesized by adding surfactant of sodium dodecyl-benzenesulfonate (SDBS). HGS was pretreated by silane coupling agent, and consequently adsorbed magnetic iron oxide. A successive coating of polyaniline layer on HGS/Fe₃O₄ was involved through polymerization of aniline with HCl as dopant, and finally the multifunctional composite hollow microspheres (HGS/Fe₃O₄/PANI) were obtained.The morphology analysis by SEM revealed that the composite microspheres were formed by a layer of dense Fe₃O₄ nanoparticles and a layer of PANI on HGS. It was found that the conductivity of the prepared HGS/Fe₃O₄/PANI was about 10^-3 S/cm, and the magnetization was of 5.60 emu/g, indicating the composite microspheres were multifunctional with conductive and magnetic properties.

• Periodical: Applied Mechanics and Materials (Volumes 457-458)
• Pages: 329-332
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.457-458.329
• Online since: October 2013
• Authors: Hui Fang Xu*, Hai Jiao Zhang, Yun He Xu, Wei Dong, Lei Chang Zhang
• Keywords: Conductive, Hollow Microspheres, Magnetic

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