Development of Method to Separation and Punfication 0f Novel-Fullerene Corn-pound Materials Using Plasma Chromatography

等离子色谱分离纯化0f新型富勒烯复合材料方法的建立

基本信息

批准号：
12680471
负责人：
HIROTA Takamichi
金额：
$ 2.24万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12680471/
关键词：
Na-C_<60> Plasma Endohedral Metallofullerene Bias Control Method Radial-Deveded Electrodes Control and Separation of Lons in the Plasma Plasma Chromatography フラーレンプラズマ金属内包フラーレンフラーレン誘導体・重合物

项目摘要

The endohedral metallofullerene K@C_<60> was successfully formed by the energy and flux control of K^+ and C^-_<60> ions flowing into substrates in experiments of the thin-film formation with a potassiumfullerene (K^+_-C^-_<60>) plasma. Since the K@C_<60> production ratio to C_<60> was at most 30% and usually 5〜10% or less, however, it was difficult to clarify the relation between the plasma effect and encapsulation mecharuism. From the abovementioned viewpoint, the experiments were carried out by a sodiumfullerene (Na^+_-C^-_<60>) plasma, where the diameter of Na^+ is srmaller than that of K^+. The following results were obtained.According to the mass analysis of thin films formed on the substrates, the large massspectrum peak (Na(@)C_<60>) corresponding to the Naendohedral fullereoe is observed. The average intensity ratio of Na(@)C_<60> to C_<60> is turned out to be 30〜50%. Moreover, the Na(@)C_<60> production ratio to C_<60> in a narrow region of the substrate attains to 200% or more.When the substrate bias is chansed, the average spectrumpeak intensity of Na(@)C_<60> is found to give the maximum value at a specific voltage.The composition and structure of the thin film are directly investigated by the highresolution electron microscope (HREM) observation. A lot of C_<60> molecules with dark shadows around the centers are observed over the image of the thin film in the narrow region of the substrate. The round material imaged by the HREM is considered to be C_<60> encapsulating Na inside the cage, because the Na^+ diameter almost corresponds to the dark shadow diameter.It can be said that a large amount of production of the Na-C_<60> compound materials containing Na@C_<60> facilitates the constituent analysis and structure observation for the purpose of clarifying their physical and chemical properties. This work is also important in the sence of establishing the method of forming fullerenebased thin films with new functions.

在用钾形成的实验中，用k^+和c^-__ <60>离子的能量和通量控制，在用钾形成的实验中，用钾含量（k^+ _-c^-_____ <60>）血浆中的薄膜形成的实验中，基质和通量控制成功地形成了内hellyfullerene k@c_ <60>。但是，由于K@c_ <60>的生产率与C_ <60>最多是30％，通常是5-10％或更少，因此很难阐明血浆效应和封装机电路由之间的关系。从上面提到的角度来看，实验是通过钠fullerene（Na^+_- c^-_ <60>）等离子体进行的，其中Na^+的直径比K^+的直径为SRMALLER。获得了以下结果。根据在基板上形成的薄膜的质量分析，观察到与NaendoheDral Fullereoe相对应的大质量峰（Na（@）C_ <60>）。 Na（@）C_ <60>与C_ <60>的平均强度比为30-50％。此外，在基板的狭窄区域中，Na（@）C_ <60>的生产率与C_ <60>达到200％或更多。当改变底物偏置时，发现Na（@）C_ <60>的平均光谱峰强度在特定电压下给出最大值。薄膜的组成和结构由高分辨率电子显微镜（HREM）观察直接研究。在基板狭窄区域的薄膜图像上观察到许多C_ <60>分子在中心周围有深色阴影。 HREM成像的圆形材料被认为是C_ <60>包裹在笼子内的Na，因为Na^+直径几乎对应于深色阴影直径。可以说，Na-C_ <60>的大量生产Na-C_ <60>复合材料包含Na@C_@C_@C_@C_@C_ <60>最喜欢的结构分析和结构构图，以实现其物理和化学性质的构图。这项工作对于建立具有新功能的全面薄膜的方法也很重要。