【作者】 于九龙； 彭淑鸽； 张玉清； 刘汉范；

【Author】 Jiu-Long Yua, Shu-Ge Penga, Yu-Qing Zhang*a, Han-Fan Liub a Key Lab of Polymer and Nanomaterials, University of Science and Technology of Henan, Luoyang, 471003

【机构】 河南科技大学高分子与纳米材料重点实验室； 中国科学院北京化学研究所；

【Abstract】 A new route to prepare of poly(N-Vinyl-2-pyrrolidone) (PVP)-stabilized ruthenium nanoparticles by refluxing ruthenium(Ⅲ) chloride in low boiling point alcohols was developed. Purple colloids can be obtained and stabilized for more than one year with PVP. UV-Visible absorption spectrophotometry (UV-Vis), Transmission electron microscopy (TEM), Atomic force microscopy (AFM), X-ray diffraction (XRD), and X-ray photoelectron spectrometry (XPS) were employed to characterize the structure and morphology of ruthenium nanoparticles. The results indicated the ruthenium nanoparticles appeared shuttle-like shapes. The influence of PVP, alcohols,pH and reaction atmosphere to the reduction process of ruthenium colloids was also explored in this research. The optimal condition was confirmed to synthesize stable purple ruthenium particles. The preparation of ruthenium nanoparticles with particular morphology built a good basis to explore the properties of noble metal nanoparticles as catalyst.更多还原