基于金属-有机配位化合物的有序介孔金属氧化物制备和性能研究

有序介孔金属氧化物作为一种新兴的功能材料在催化、分离、吸附以及光电子学、环境学等领域有非常重要的应用，然而具有特定功能和结构的介孔氧化物材料的可控合成与定向组装仍是当前亟待解决的基本科学问题。本课题基于金属-有机配位化合物的多孔结构可设计、可调控、可修饰的特点，拟选取各类含多孔结构的羧酸类金属配位聚合物为模板，通过选择不同结构和形状的有机配体，设计合成具有不同拓扑空间结构和次级建筑单元的框架化合物前体，通过金属元素在聚合物前体中空间结构的继承关系，用简单热解氧化法实现具有不同多孔结构的介孔金属氧化物制备，获得一种有序介孔金属氧化物定向组装与可控合成的新方法。系统研究有机配体与金属离子的网络构成对金属氧化物多孔结构的影响规律和物理化学关联，并深入研究材料的气体吸附、催化、光电磁等性质，探索固体结构与物质性能的构效关系。

Ordered mesoporous metal oxides，as a kind of new functional materials，has very important application in catalysis, separation, adsorption, optoelectronics and environmental fields.However, controlled synthesis and directed assembly of mesoporous oxides with specific function and structure is still a urgent and fundamental scientific question. This project based on features of the porous structure that can be easily designed, controled and modified in the meta-organic coordination compounds, to select different structure and shape of the organic ligand, synthesis the carboxylic acid coordination polymers with different topological space structure and the secondary building unit. A simple pyrolysis oxidation method is used for preparing ordered mesoporous metal oxides with diverse mesoporous structure due to the metal ion coordination can inherit the original spatial structure of polymers. This is a novel route for controllable synthesis and directed assembly of ordered mesoporous metal oxide.Influence of the organic ligands and metal network on porous structure of metal oxide, and its physical and chemical association, will be investigated. By investigation of gas adsorption, catalytic, optical，electrical and magnetic properties of the mesoporous oxide, explore the relationship of solid structure and material properties.