项目名称: 以羧酸配位聚合物为模板制备低维纳米过渡金属氧化物材料及形貌控制研究
项目编号: No.21201045
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 无机化学
项目作者: 桂柳成
作者单位: 广西师范大学
项目金额: 25万元
中文摘要: 以新一代量子器件和纳米结构器件为背景的纳米结构设计和合成成为纳米材料研究的新热点。近年来,利用超分子聚集体为模板,制备具有特殊形貌的纳米过渡金属氧化物材料,已引起化学、材料学科学工作者极大兴趣。本课题拟利用配位化学和超分子化学的合成手段,控制合成具有中空结构的簇合物和一维管状、链状羧酸配位聚合物,并以此作为模板,合成具有中空结构的纳米笼,一维纳米线、棒、管以及纳米环等特殊形貌低维纳米氧化物材料。探究前躯体配位聚合物的分子结构与纳米材料形貌之间的关系,探究这个过程中形貌传递机理和规律。通过修饰配体以及改变合成条件对前躯体羧酸配位聚合物的结构进行修饰,调控纳米材料结构和尺寸的形成。该课题研究涉及配位化学在纳米材料设计和合成方面的应用,其成果将对纳米材料的形貌设计、尺寸控制提供理论依据,并为分子器件的制备提供参考。
中文关键词: 纳米结构;超分子聚集体;前驱体;过渡金属氧化物;
英文摘要: The design and synthesis of nanostructures for a new generation of quantum devices and nanostructural devices have become a new hot topic in the area of nanomaterial research. Recently, the approach employing the suprarmolecule aggregates as templates to produce transtional metal oxides (TMO) nanomaterials with tailored morphologies has attracted much attention by researchers in chemistry and material science. In this project, some clusters with hollow cage and one-dimensional carboxylic-coordination-ploymers with tubular and/or chain structures will be synthesized controlledly based on the synthetic strategy of the coordination and supramolecular chemistry, while these afforded structures will be utilized as precursor templates to prepare some tailored morphologies transtional metal oxides (TMO) with low-dimensional nanomaterials such as nanocages, nanowires, nanotubes, nanorods or nano-rings. The correlation between the molecular structures of precursors and the morphologies of synthesized nanomaterials will be studied, while the transport mechanism and law of morphologies from coordination precursor to naomaterial are also expected to be explored. The structure and size of nanomaterial can be tuned by tailered coordination precursor from different synthetic methods and/or different organic ligands. This resea
英文关键词: nanostructures ; suprarmolecule aggregates ;precursor;Transition-metal-oxide;