项目名称: 新型多孔复合材料
项目编号: No.21301096
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 李绍周
作者单位: 南京邮电大学
项目金额: 25万元
中文摘要: 具有高稳定性,导电性和比表面积的新型材料由于在化学催化,能源储存、转化以及生物传感等方面的广阔应用,一直吸引着众多研究者。受多孔金属骨架有机聚合物材料(metal-organic frameworks)合成的启发,本研究拟开发一种基于层状导体,半导体(拟以石墨和硫化钼为代表),具有较高的稳定性,优异的导电性能和大比表面积的新型材料。由于层状材料具有各项异性的导电性能,载流子主要在层内运动,层与层间的载流子越迁很少。所以在不破坏层结构的前提下,本研究拟以导电的层状材料为骨架,通过嵌入孔状有机分子-金属离子配合物层来提高其比表面积和相应的化学性能,从而使得到的新型功能型材料不仅具有层状无机材料的优异物理性质,而且也具备了金属骨架有机聚合物的大比表面积和具有化学活性的有机官能团的特性。因为它可能具有的这些特性,这种稳定的,具有导电性和大比表面积的新型材料必将展现出广阔的应用前景。
中文关键词: 复合材料;配位化学;多孔材料;金属有机骨架材料;
英文摘要: Due to their potential applications in catalysis, supercapacitor, lithium battery and biosensing, porous materials with high stability, good conductivity and large surface area are attracting intensive attention. Inspired by the formation process of metal-organic frameworks (MOFs), we proposed a new method to form such kind of conductive porous materials with the backbone of layered materials such as graphite and molybdenum disulfide, by applying the coordination chemistry. The method we proposed can be described as follows: Layered materials such as graphite or molybdenum disulfide were used as the mother materials. Through intercalating reactions, metal ions or ligands can be inserted between the layers of the mother materials. With the coordination chemistry between the metal ions and ligands, these intercalated layers can be converted into porous structures. As the carriers such as electrons or holes prefer to transport within the layers and the formed porous materials adapt the layered structures of their mother materials. Thus, the final porous materials may reserve the physical properties from their mother materials like good conductivity, they also show the new properties resulting from the formation of porous MOF-like structures, such as large surface area and chemical activity linked to the diversity
英文关键词: composite;coordination chemistry;porous material;metal-organic framework;