【作者】 张双虎；

【导师】 董相廷；

【作者基本信息】 长春理工大学 ， 应用化学， 2007， 硕士

【摘要】 纳米管状材料由于其独特的物理化学性能以及在催化、医药、纳米电子、光电子器件等领域具有的潜在应用价值引起了研究者们的高度关注。本论文以同轴静电纺丝技术（Coaxial Electrospinning）制备无机／无机同轴纳米电缆为研究重点，制备有机／无机氧化物中空纳米纤维，同轴纳米电缆，并对其结构进行了表征。 本文首次采用同轴静电纺丝技术成功制备出了聚乙烯吡咯烷酮（PVP）中空纳米纤维、TiO₂中空纳米纤维、TiO₂@SiO₂同轴纳米电缆。采用扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X射线衍射仪（XRD）、能谱仪（EDS）、傅立叶变换红外光谱（FTIR）等手段对其结构进行了表征，制备的纳米管直径90nm-1000nm，长度300μm-400μm。对同轴静电纺丝技术中纺丝内外纺丝溶液的流量、互溶性、浓度，以及喷嘴尺寸、电压、接受距离等主要影响因素进行了深入研究。对中空纳米纤维及同轴纳米电缆的形成机理进行了详细讨论，得到了一些很有意义的结果，对一维纳米材料的研究有一定的参考价值。更多还原

【Abstract】 Nanotubes have attracted great considerable attention recently due to their unique physical chemical properties and their potential applications in catalysis, medicine, nanoelctronics and optoelectronic nanodevices. In this dissertation,coaxial electrospinning was explored to synthesize organic/inor -ganic oxides hollow nanofibres and coaxial nanocables, meanwhile the structures of prepared nanomaterials have also been studied.For the first time, PVP hollow nanofibres, TiO₂ hollow nanofibres and TiO₂@SiO₂ coaxial nanocable with diameters ranging from 90nm-1μm, length up to 300μm-400μm have been successfully synthesized by coaxial electrospinning. Their structure have been studied by SEM, TEM, XRD, EDS and FTIR. Some parameters, for example, flow rate, immiscible and miscible properties of electrospun solutions, concentration, spinneret size, voltage, working distance, were also discussed. By discussing the formation mechanisms of hollow nanofibres and coaxial nanocables, some useful results were obtained, which will have some reference value for further study of one-dimensional nanostructures materials.更多还原