Fabrication of Heterogeneous Magnetic Gold Films via Aqueous Reduction
This paper reports a novel aqueous preparation of gold-supported magnetite (Fe3O4) nanoparticles (NPs) heterogenous films via reduction effect of a solution mixture of hydrogen tetrachloroaureate(III) trihydrate (HAuCl4) and amino-functionalized Fe3O4 NPs with further addition of reduction agent. The heterogenous films were characterized by XRD, SEM, XPS and SQUID magnetometry. The films demonstrated a morphology of high surface area-to-volume ratio because of close-packed Fe3O4 NPs on the reduced gold substrate, and their saturation magnetization were about 12.3 emu?g-1 per square centimeter. These heterogenous magnetic gold films with unordinary nanostructure provide properties combination and possible new functions such as gas sensing or catalytic purposes.
Aqueous reduction MNPs gold-support MNPs heterogenous films
Wei Wu Quanguo He Jiqing Wang Hong Chen Jianxin Tang
Green Packaging and Bio-Nanotechnology Laboratory, Hunan University of Technology, Zhuzhou 412008 P. College of Life Science and Technology, Central South University of Forestry and Technology，Changsha
国际会议
The 5th International Forum on Post-genome Technologies(5IFPT)(第五届国际后基因组生命科学技术学术论坛)
苏州
英文
2007-09-10（万方平台首次上网日期，不代表论文的发表时间）