吡嗪类共价有机框架材料的设计合成、表征及催化应用研究

发布时间：2018-05-31 21:10

本文选题：共价有机框架材料 + 吡嗪　；参考：《吉林大学》2017年硕士论文

【摘要】：共价有机骨架材料(COFs,Covalent Organic Frameworks)是一种由共价键连接形成的多孔晶型材料,2005年,Yaghi教授课题组首次报道了这种新型多孔材料。由于其具有结构规整、密度低、比表面积大、易于表面修饰等特性,所以该材料在气体吸附存储、催化和光电等领域的研究受到广泛的关注,也引起了相关领域科学家和研究工作者的研究兴趣。到目前为止,大量具有不同结构、功能及应用的COF材料已经被合成出来,然而这些已经报道的COF材料由于反应单一和合成困难等特点,在结构稳定性和功能化应用上存在很大局限性;例如含硼类COF材料对水和氧气敏感,而含亚胺双键的COF材料对酸碱的耐受性也不高。寻找新的反应类型来合成具有较高稳定性的新结构COF材料是这个领域的研究热点之一。本论文集中讨论了如何设计合成吡嗪连接的COF材料,以及这类COF材料在催化领域中的应用。本论文主要包括以下几个方面:第一部分:详细的阐述了新类型COF材料的研究进展,合成COF材料的反应类型和COF材料的特性,还简单的介绍了COF材料的应用。第二部分:以1,2,4,5-苯四胺、3,3’-二胺基联苯胺分别和2,3,6,7,10,11-六羟基三亚苯水合物为前体,通过COF材料的主要合成方法即溶剂热法设计合成两种吡嗪类的COF材料。通过粉末X-射线衍射,扫描电镜,红外,固体核磁,透射电镜等表征方法对此材料进行表征。第三部分:探索了吡嗪类COF材料在不同气体存储上的应用(H2,CH4,CO2),同时将已经合成的COF材料组装金属锰离子,进行催化研究,发现这种组装金属锰离子的COF材料有很高的催化活性,而且进行多次催化,并且催化活性没有明显降低,显示了这种组装金属锰离子的COF材料在催化方面的潜在应用前景。
[Abstract]:Covalent organic skeleton material, Covalent Organic Framework, is a kind of porous crystalline material formed by covalent bonding. This new porous material was first reported by Professor Yaghi's research group in 2005. Due to its regular structure, low density, large specific surface area and easy surface modification, the study of this material has attracted wide attention in the fields of gas adsorption, storage, catalysis, photoelectricity and so on. It has also aroused the interest of scientists and researchers in related fields. Up to now, a large number of COF materials with different structures, functions and applications have been synthesized. However, these reported COF materials are characterized by single reaction and difficult synthesis. For example, boron COF materials are sensitive to water and oxygen, while COF materials containing imine double bond have low tolerance to acid and alkali. It is one of the research focuses in this field to find new reaction types to synthesize new structure COF materials with high stability. This paper discusses how to design and synthesize pyrazine-bonded COF materials and their applications in the field of catalysis. This paper mainly includes the following aspects: the first part: the research progress of the new type of COF materials, the reaction type of synthetic COF materials and the characteristics of COF materials are described in detail. The application of COF materials is also briefly introduced. The second part: two kinds of COF materials of pyrazine were designed and synthesized by solvothermal method, which were prepared by the main synthesis method of COF. The material was characterized by powder X ray diffraction, scanning electron microscope, IR, solid nuclear magnetic field and transmission electron microscope. Part three: the application of pyrazine COF materials in different gas storage was explored. At the same time, the synthesized COF materials were assembled into metal manganese ions for catalytic study. It was found that this kind of COF materials assembled metal manganese ions had high catalytic activity. Moreover, the catalytic activity was not significantly decreased, which showed the potential application prospect of this COF material assembled with metal manganese ions in the field of catalysis.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O643.36

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