Magnetic Gold Film Fabrication from MPTES-functionlized Magnetite Nanoparticles
Using a nanoscale buiding block to fabricate macroscopic sensing material is a popular challenge either from a fundmental research standpoint or from an applied perspective. In this paper we report a novel aqueous preparation of gold-supported composite films from nanoscale MPTES functionlized magnetite (Fe3O4) nanoparticles (NPs) under aqueous excessive aureate reduction. The composite films are characterized by X-ray powder diffraction (XRD), Xray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), superconducting quantum interference device (SQUID) magnetometry. The films demonstrate a morphology of high specific surface area due to it close-packed magnetite nanoparticles on the reduced gold substrate, and their saturation magnetization is 12.3 emu.g-1. These magnetic gold films with composite structure provide properties combination and possible new functions such as gas sensing or catalytic purposes.
Magnetic film Nanofabrication magnetite (Fe3O4) nanoparticles sensing nanocomposite sensor
Quanguo He Lei Zeng Zhaohui Wu
Green Packaging and Biological Nanotechnology Laboratory, Hunan University of Technology Zhuzhou, China, 412008, China
国际会议
长沙
英文
1720-1723
2010-03-13（万方平台首次上网日期，不代表论文的发表时间）