Practical development of automatic continuous fullerene arc-producer with carbon-chip material introducing system

带碳片材料导入系统的自动连续富勒烯引弧装置的实用化开发

基本信息

批准号：
07558063
负责人：
MIENO Tetsu
金额：
$ 1.98万
依托单位：
Shizuoka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07558063/
关键词：
Fullerene production Arc discharge Material injection Endohedral metallofullerene Magnetic field Chip type carbon material Automatic continuous production 大量生産フラーレン塊状炭素自己組織化 C_<60>

项目摘要

1) A JxB arc jet fullerene continuous producer with chip-type carbon material introducing system is developed. In a Crucible type anode, chip type carbon is filled up and is supplied by dropping from carbon material stock when it is consumed. By a comparation method, the arc condition is automatically controlled (maximum discharge current is 300 A). By applying steady-state magnetic field, arc plasma including carbon vapor is jetted out by JxB arc jet force, which increase fullerene production rate seriously (about 7 times).2) By using this machine, carbon soot is produced at 10 g/h for the discharge current of 200 A.C_<60> content is about 10-20 W%. C_<70> content is about 2-4 W%. Higher fullerene (C_<76>, C_<78>, C_<82>, C_<84>) contents is about 0.2 W%.3) Lanthanum endohedral metallofullerenes are produced by this machine with carbon-La_2O_3 composite chip and mixture of carbon chip and La_2O_3 powder. Production of LaC_X (x=60,62,64, ...) is confirmed by the laser desorption time-of-flight mass spectrometer. By the Soxhelet method, LaC_X (x=72,74,76, ...) are extracted. LaC_<60> and LaC_<70> are also extracted by low-temperature ultrasonic extraction method, which are not stable in hot organic solvent. La@C_<82> content in the soot is bout 0.2 W%.4) From this study, revolver type fullerene automatic producer is developed. It is manufactured and started to cell by Daia Vacuum company in Japan.

1)开发了具有片式碳材料引入系统的JxB电弧喷射富勒烯连续生产装置。在坩埚型阳极中，片状碳被填充，并在消耗时通过从碳材料原料中滴落来供给。通过比较方法，自动控制电弧状态（最大放电电流300A）。通过施加稳态磁场，通过JxB电弧喷射力喷射出含有碳蒸气的电弧等离子体，大大提高了富勒烯的产率（约7倍）。2）使用该设备，碳烟的产生量为10克/小时对于200A的放电电流，<60>含量约为10-20W%。 C_<70>含量约为2-4W％。较高的富勒烯（C_<76>、C_<78>、C_<82>、C_<84>）含量约为0.2 W%。3）本机采用碳-La_2O_3复合切片和碳混合物生产镧内嵌金属富勒烯片和La_2O_3粉末。 LaC_X (x=60,62,64, ...) 的产生通过激光解吸飞行时间质谱仪证实。通过Soxhelet方法，提取LaC_X(x=72,74,76,...)。 LaC_<60>和LaC_<70>也是采用低温超声萃取法提取的，但在热有机溶剂中不稳定。烟灰中La@C_<82>含量约为0.2W%。4)根据本研究，开发了转轮式富勒烯自动生产装置。由日本Daia Vacuum公司制造并开始生产。