非传统杂多酸化合物的控制性设计合成和功能性修饰

项目名称： 非传统杂多酸化合物的控制性设计合成和功能性修饰

项目编号： No.21301154

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： 高静

作者单位： 浙江工业大学

项目金额： 25万元

中文摘要： 杂多酸的结构和性质丰富多样，在催化、医药、材料等领域有广泛应用。但目前杂多酸的合成中所用的杂原子模板的种类非常单调且其发现多具偶然性；其次，在性质探索和应用方面所涉及的杂多酸种类仅限于少数几个Keggin和Dawson型化合物，大大限制了其工业化应用进程；再次，如何制造性能优良的含杂多酸化合物的复合材料成为新的研究热点和难点。 选择有丰富化学价态的6A族元素或者非常规价态的5A族元素作为杂原子模板，使用"一步合成法"发现新的杂多酸结构构筑单元并构建其结构构筑模块的数据库("Building Block Library")，然后用这些结构构筑单元作前驱体进行多步反应来组装分子，以突破性地实现杂多酸的控制性合成，同时也可赋予这类非传统杂多酸化合物优异的氧化还原性及储藏和运输电子的能力，显著提高其电化学和催化性能，在此基础上利用其制造功能复合材料，对杂多酸化学的发展和应用具有里程碑式的指导意义

中文关键词： 多酸化合物；金属-有机框架化合物；氧化钨；碳化钨；催化性能

英文摘要： Hetero-Polyoxometalates (HPOMs) have a great variety of structures and properties, making them can be widely applied in many fields such as catalysis, medicines and materials. However, the hetero-templates used in the synthesis of HPOMs are surprisingly limited and in most cases the HPOMs were discovered only by chance. In addition, there are just a few HPOMs, i.e., the normally seen Keggin and Dawson type compounds, have been involved in terms of exploring the properties and applications of HPOMs, which is greatly restricting the developments in industrial application of HPOMs. Finally, how to make new functional composites with excellent properties from HPOMs is now a big challenge to scientists. Choosing elements from the 6A main group which have abundant chemical valence states as untroditional hetero-templates, combining with the use of traditional "one-pot" synthetic method, new building blocks of HPOMs could be discovered, based on which a building block library could be constructed. Then these building blocks can be used as precursors in multistep reactions to assemble HPOM molecules, making the controllable synthesis of HPOMs to be true for the first time in history. Moreover, using these elements from 6A main group could possibly endow HPOMs with excellent redox properties and remarkable abilitie

英文关键词： Polyoxometalates；Metal-Organic Frameworks；Tungsten oxides；Tungsten carbides；Catalytic performances