【作者】 朱国兴； 魏先文； 刘元君； 金莉莉；

【Author】 Guo-Xing Zhu, Xian-Wen Wei, * Yuan-Jun Liu, Li-Li Jin College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, P. R. China

【机构】 安徽师范大学化学与材料科学学院,安徽省功能性分子固体重点实验室；

【Abstract】 Magnetic metal (Fe, Co, Ni) nanoparticles have wide foreground of applications in fields of magnetic resonance imaging, drug targeting, and catalyst etc. owing to their unique properties. This paper reported the preparation of a series of magnetic metal nanostructures (FeNi, Ni, Co) by solution phase reduction in the system of surfactant-cyclohexane-water. The influences of the kinds of surfactant and the concentrations of metal ions on the structures were studied. The phase, shape and size of the samples were characterized by means of powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and selected-area electron diffraction pattern (SAED). The magnetic properties of FeNi nanocrystals were studied. The results indicated that modifying the experimental parameter could control the shape and size of Co and FeNi nanocrystal. Spherical Ni, FeNi nanocrystals can be prepared in the system of polyglycol (Mw = 20000)-cyclohexane-water, in which only micrometer grade cobalt spheres with thorns were obtained. With oleic acid and trioctylphosphine oxide as surfactants cobalt chains were prepared.更多还原