中子辐照法合成新型纳米结构材料

Synthesis and Characterization of Nanostructural Materials by Neutron Irradiation Catalysis

放射化学与纳米科学的交叉,既是放射化学在新兴前学科的应用,也是放射化学本身在前沿领域的发展。本文通过介绍反应堆中子催化引起的富勒烯反应,特别是聚合反应的设计方法、分离纯化过程,产物分析和结构表征等研究,建立了堆中子合成全碳富勒烯二聚体C121,C131和C141的方法,探索开辟利用中子等放射性辐射技术,发展新型纳米结构物质,如全碳富勒烯二聚体、三聚体、甚至四聚体的新方法。全碳富勒烯二聚体既是碳元素的一种新的同分异构体,也是合成富勒烯高聚物的起始物,因此倍受关注。它们在人工光合成、分子电子器件和超分子化学领域有广阔的应用前景。

The multidisciplinary study of nanosciences using radiochemistry as probes is not only the application of radiochemistry in nanosciences, but also the development of radiochemistry itself. We report here a new method for synthesis of all-carbon fullerene dimmers, established with neutron irradiation of fullerenes, including the experimental design, neutron irradiation, separation and isolation, and characterizations. With irradiation of nuclear reactor neutrons, we have established a method for syntheses all-carbon fullerene dimers, C121, C131, and C141 that are difficult to produce by chemical approaches. The results may open a way for syntheses of fullerene dimmer, trimer, or even polymer materials which have promising appliacations in various field like artifical photosynthesis, molecular device and supermolecular chemistry, etc.