基于刚性羧酸配体的金属-有机凝胶的结构调控与催化应用研究

项目名称： 基于刚性羧酸配体的金属-有机凝胶的结构调控与催化应用研究

项目编号： No.21273007

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 张建勇

作者单位： 中山大学

项目金额： 78万元

中文摘要： 金属-有机凝胶作为一种新型软物质材料，是由金属离子和有机配体在特定的溶剂中形成的，在多个领域具有潜在应用价值。基于刚性有机羧酸配体的金属-有机凝胶经过超临界干燥后具有独特的多级孔道结构，并且具有较大的比表面积。和同类材料相比，金属-有机气凝胶材料可通过简单易得的原料制备，具有制备方法简单、成本低、可较大规模生产等优势。然而对于这样一类具有极大发展潜力的材料，目前国内外尙缺乏系统研究。本项目将对此类金属-有机凝胶的形成机理进行探讨，并系统研究金属-有机凝胶结构和催化性能之间的关系。通过调控金属-有机凝胶的微观结构，从而优化其吸附、发光、催化等性能，并重点开发一类高效均相催化剂负载体系。本项目的成功实施将发展一类具有较大孔洞的高比表面积有机-无机杂化凝胶功能材料，具有重要的催化应用前景。

中文关键词： 超分子凝胶；金属-有机凝胶；多孔材料；均相催化剂负载；

英文摘要： Metal-organic gels (MOGs) have attracted growing interest as novel soft materials for adsorption, sensing, luminescence, catalysis and others due to the incorporation of coordination interactions and potential application in many areas. MOGs are related to coordination polymers, which have been a hot topic during last two decades. Comparing with highly ordered aggregation of crystalline metal-organic frameworks and random aggregation of amorphous coordination polymers, aggregation process intermediate of MOGs receives much less attention. Due to incorporation of metals, MOGs may have some interesting functionalities as novel materials for adsorption, sensing, luminescence, catalysis and others. However, it is not often possible to predict whether a MOG phase will form resulting from the fact that gels are based on a liquid and a gelator. Gels are potentially complex due to complication of supramolecular interactions, and the interaction between two components is also little to be understood. To date, ‘rules’ based on organogelators have provided the main rational approach to generate metallogels with a desired function. We are interested in new strategies to coordination-directed gels. To generate a gel with a desired function, it is important that the constituent molecular blocks (gelator) be designed so as to

英文关键词： Supramolecular gels；Metal-organic gels；Porous materials；Supported homogeneous catalysis；