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低维富勒烯基纳米复合材料的制备及光电性能研究

低维富勒烯基纳米复合材料的制备及光电性能研究
  • 导航:首页 > 科学基金
  • 批准号:20671002
  • 批准年度: 2006年
  • 学科分类:人类病原细菌与放线菌生物学(C010603) |
  • 项目负责人:唐家琪
  • 负责人职称:暂无数据
  • 依托单位:安徽师范大学
  • 资助金额:0万元
  • 项目类别:面上项目
  • 研究期限:2007年01月01日 至 2009年12月31日
  • 中文关键词: 低维;富勒烯基纳米复合材料;光电
  • 英文关键词:Fullerenes;low dimensionality;nanocomposites;optical and electronic properties

项目摘要

中文摘要

基于共价作用,实现了C60丙二酸单加成物与氧化物MO(M=Zn, Cd, Pb)纳米溶胶的杂化,证实其间可能发生电荷转移。2-苯基-5-巯基甲基-3, 4-富勒烯基吡咯烷与CdS溶胶在基态时无相互作用,在激发态时有电荷转移。以C60(NH2CH2CH2OH)n为基与TiO2、SiO2、CdS、Fe3O4和ZnO等的复合材料的形貌、光性能可控。研究了含联吡啶基的C60衍生物与金、银等纳米粒子的自组装及其光物理性质。设计合成了系列功能化C60吡咯烷衍生物的单加合物及其超分子配合物。溶剂和C60球壳上所连基团对C60吡咯烷单加成衍生物的形貌及晶体结构有很大影响。对C60的衍生化尤其六加成物C60X6(X= Cl,F,H)的形成机理过程和结构进行了理论计算。合成了一系列碳纳米管基磁性纳米复合材料、磁性合金碳包覆结构,研究了其磁性和载体功能。建立了制备尺寸均匀、单分散的三维树枝状超结构的FeNi3合金晶体的方法。制备了8-羟基喹啉铝和8-羟基喹啉锌的纳米棒阵列,并用于检测三聚氰胺。利用微量汞为电极模板电沉积制备了Fe-Co、Fe-Ni、Co-Ni、Co-Sm、Co-Nd、Ni-Nd等纳米管。

英文摘要

The hybrid of monoadduct of [60]fullerene malonic acid with MO(M=Zn, Cd, Pb) colloids with the diameter of 1-2 nm were successfully fabricated by covalent bonding. There are interactions between them, which are likely caused by charge transfer. The hybrid of 2-phenyl-5-thiolmethyl-3, 4-fulleropyrrolidine (PTMF) with CdS colloids were successfully fabricated by covalent bonding. The UV-Vis spectra showed that there was no interaction between PTMF and CdS nanoparticles at the ground state; The emission of CdS nanoparticles was extremely quenched by PTMF, which is likely caused by the quenching of photoexcited CdS nanoparticles through charge transfer to the electron-accepting PTMF. The morphology and photophysical properties of C60(NH2CH2CH2OH)n based nano composites with TiO2, SiO2, CdS, Fe3O4, ZnO can be controllable achieved. The self-assembly of C60 derivatives containing mono bipyridine group with nanoparticles of Ag, Au etc. and their photophysical properties were investigated. Several new mono- C60 adducts such as fuctional groups substituted fulleropyrrolidines, their self-assembled complexes with zinc tetraphenylporphyrin have been synthesized. Different morphologies of the fulleropyrrolidine derivatives were fabricated by using the liquid-liquid interfacial precipitation method. The crystal formation, crystalline structure and the morphology were controlled by different monosubstitute groups on C60 cage and solvents. Density Functional Theory method is employed to study the mechanism of derivation of C60, especially on the structure and reactivity of C60X6 (X=Cl, F, H), which can not only explain the experimental results, but can also predict the new reaction. The carbon nanotubes based magnetic nanocomposites, magnetic alloy encapsulated in carbon have been prepared and their magnetic properties and as catalyst carriers were studied. Uniform-sized, monodisperse, and single crystalline FeNi3 dendritic superstructures were successfully synthesized in high yield by a simple and facile hydrothermal method without the presence of surfactants. Parallel polycrystalline bis (8-hydroxyquinoline) zinc (II) complex nanorod arrays, are in-situ fabricated by liquid–liquid interfacial precipitation in the pores of porous anodic aluminum oxide membrane. The prepared nanorods show an enhanced photoluminescence emission compared to submicron particles, and can be used as a good melamine probe for easy and highly sensitive detection. Parallel uniform arrays of Fe-Co、Fe-Ni、Co-Ni、Co-Sm、Co-Nd、Ni-Nd etc. alloy nanotubes were prepared by a direct current electrodeposition with mercury cathode using porous anodic aluminum oxide membrane as template. It is meaningful to synthesize the new C60 derivatives and low dimensional nanomaterials based on fullerenes and to study their photophysical properties and magnetic properties,which will play an important role in developing the fullerene chemistry.

结题摘要

基于共价作用,实现了C60丙二酸单加成物与氧化物MO(M=Zn, Cd, Pb)纳米溶胶的杂化,证实其间可能发生电荷转移。2-苯基-5-巯基甲基-3, 4-富勒烯基吡咯烷与CdS溶胶在基态时无相互作用,在激发态时有电荷转移。以C60(NH2CH2CH2OH)n为基与TiO2、SiO2、CdS、Fe3O4和ZnO等的复合材料的形貌、光性能可控。研究了含联吡啶基的C60衍生物与金、银等纳米粒子的自组装及其光物理性质。设计合成了系列功能化C60吡咯烷衍生物的单加合物及其超分子配合物。溶剂和C60球壳上所连基团对C60吡咯烷单加成衍生物的形貌及晶体结构有很大影响。对C60的衍生化尤其六加成物C60X6(X= Cl,F,H)的形成机理过程和结构进行了理论计算。合成了一系列碳纳米管基磁性纳米复合材料、磁性合金碳包覆结构,研究了其磁性和载体功能。建立了制备尺寸均匀、单分散的三维树枝状超结构的FeNi3合金晶体的方法。制备了8-羟基喹啉铝和8-羟基喹啉锌的纳米棒阵列,并用于检测三聚氰胺。利用微量汞为电极模板电沉积制备了Fe-Co、Fe-Ni、Co-Ni、Co-Sm、Co-Nd、Ni-Nd等纳米管。

评估说明

    国家自然科学基金项目“低维富勒烯基纳米复合材料的制备及光电性能研究”发布于爱科学iikx,并永久归类于相关科学基金导航中,仅供广大科研工作者查询、学习、选题参考。国科金是根据国家发展科学技术的方针、政策和规划,以及科学技术发展方向,面向全国资助基础研究和应用研究,发挥着促进我国基础研究源头创新的作用。国科金的真正价值在于它能否为科学进步和社会发展带来积极的影响。

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