纳米金属氧化物的制备及应用研究的若干进展

综述了氧化物及复合氧化物纳米晶的各种制备方法及特点 ,重点介绍了有机配合物前驱体法 聚乙二醇法、明胶法和硬脂酸法制备氧化物纳米晶的原理、特点以及在磁性材料、电磁波吸收材料、催化剂和塑料改性方面的若干应用  

纳米化学

介绍了纳米结构物质的发展现状, 着重阐述了纳米物质的化学制备方法以及对其化学性质研究的新进展。介绍了纳米物质的可能应用途径, 指出纳米化学的发展对纳米材料的开发和应用具有十分重要的作用。  

纳米Fe3O4/PVDF磁性复合膜的原位制备及表征

通过膜相渗透原位化学沉积法制备了聚合物基Fe3O4/聚偏氟乙烯（PVDF）磁性纳米复合膜，研究了复合膜制备的适宜条件，采用红外光谱（FT-IR）、差热分析（DSC）、X射线衍射、扫描电镜（SEM）等手段对复合膜的组成、结构进行了表征和分析，通过气体渗透法测定了复合膜的孔径随制备条件的变化情况. FT-IR和XRD图谱结果表明，在基膜中原位生成Fe3O4后不影响基膜PVDF的分子结构；复合膜中的Fe3O4粒子尺寸为68 nm左右，复合膜的磁化率达0.044 cm3•g－1；复合膜的磁化率、平均孔径、最大孔径及孔径分布范围随反应条件的改变而有明显变化.  

PbTiO3纳米粉的制备及光催化研究

本文对ＰｂＴｉＯ３纳米粉的非醇盐水相制备技术、表征及对染料溶液的光催化降解性能进行了一系列的研究。结果表明该合成方法反应温度低，工艺简单，所合成的ＰｂＴｉＯ３催化活性优于一般方法制备的ＰｂＴｉＯ３，具有良好的光降解染料废水的功能。  

高分子量聚二茂铁衍生物的性质与应用

综述了近年来高分子量聚二茂铁衍生物性能及应用研究的进展。聚二茂铁衍生物均聚物和嵌段共聚物表现出独特的电、光、磁和氧化不原性质，在材料科学、超分子科学和纳米结构材料方面的应用前景良好。  

开环聚合制备高分子量聚二茂铁衍生物及其性能的研究

综述了近年来国内外高分子量聚二茂铁衍生物的研究进展。对热引发、阴离子引发、过渡金属催化等开环聚合方法及机理以及聚合物结构、性能及潜在应用作了介绍。  

CeO2/SnO2纳米材料的制备与气敏性能研究

本文应用溶胶-凝胶法制备了7种不同成分和煅烧温度的CeO2/SnO2材料,应用X射线衍射方法对其中的3种进行了结构表征和粒度分析,运用自组装的气敏性能设备检测了该7种不同成分的CeO2/SnO2材料的气敏性能,简要分析了其气敏机理。结果表明:掺杂CeO2有利于SnO2晶粒的细化;掺杂CeO2和La2O3可改变或提高SnO2气敏材料对某些气体的气敏性能;煅烧温度在600℃~800℃之间,掺杂2?O2的CeO2/SnO2气敏材料,随煅烧温度上升,气敏性能下降;煅烧温度600℃、掺杂5?O2的CeO2/SnO2气敏材料,对乙醇具有较高的灵敏度和选择性,具有开发应用价值;CeO2/SnO2气敏材料的气敏机理为表面电导控制型。  

Optical and Structural Properties of Doped ZnS Nanoparticles Produced by the Sol-Gel Method

Optical and structural properties of Mn2+-doped ZnS nanoparticles in an organic matrix are experimentally and theoretically studied. The nanoparticles, which were produced by the sol-gel method, are nearly monodisperse with a diameter of approximately 3 nm and show the characteristic orange-red luminescence of Mn2+ centers in a crystalline ZnS matrix. The absorption spectrum of the embedded ZnS nanoparticles is slightly blue shifted and broadened compared to the reference system containing ZnS microparticles. This blue shift is caused by quantum size effects, whereas the broadening is due to defects such as lattice distortions, and vacancies, which are probably located close to the surface in the case of small particles. With increasing temperature the absorption spectra shift to the red and are broadened due to thermal activated diffusion of ions close to the surface. In contrast, the spectral feature of the emission spectra via the Mn2+ center is nearly unchanged compared to the ZnS microparticles. Furthermore, the quantum efficiency is increased and the decay time of the electron-hole pairs is shortened to the nanosecond regime because of the enhanced probability of the electron-hole pairs to see the Mn2+ center. Therefore, the only effect of doping of ZnS nanoparticles with Mn2+ center is the suppression of the relaxation of electron-hole pairs via surface defects generating a highly efficient and fast relaxation of the electron-hole pairs via the Mn2+ center.  

层状固体模板组装有机/无机纳米结构材料

主要介绍了几种有机／无机层状固体模板组装纳米功能材料的研究进展，对模板的类型、制备、纳米结构材料的产生及其应用前景进行了综述。  

Optical and Structural Properties of Doped ZnS Nanoparticles Produced by the Sol-Gel Method

Optical and structural properties of Mn2+-doped ZnS nanoparticles in an organic matrix are experimentally and theoretically studied. The nanoparticles, which were produced by the sol-gel method, are nearly monodisperse with a diameter of approximately 3 nm and show the characteristic orange-red luminescence of Mn2+ centers in a crystalline ZnS matrix. The absorption spectrum of the embedded ZnS nanoparticles is slightly blue shifted and broadened compared to the reference system containing ZnS microparticles. This blue shift is caused by quantum size effects, whereas the broadening is due to defects such as lattice distortions, and vacancies, which are probably located close to the surface in the case of small particles. With increasing temperature the absorption spectra shift to the red and are broadened due to thermal activated diffusion of ions close to the surface. In contrast, the spectral feature of the emission spectra via the Mn2+ center is nearly unchanged compared to the ZnS microparticles. Furthermore, the quantum efficiency is increased and the decay time of the electron-hole pairs is shortened to the nanosecond regime because of the enhanced probability of the electron-hole pairs to see the Mn2+ center. Therefore, the only effect of doping of ZnS nanoparticles with Mn2+ center is the suppression of the relaxation of electron-hole pairs via surface defects generating a highly efficient and fast relaxation of the electron-hole pairs via the Mn2+ center.