等离子体条件下煤基富勒烯的制备及生成机理  

SYNTHESIS AND FORMATION MECHANISM OF COAL-DERIVED FULLERENES BY PLASMA

作　　者：蔺娴[1] 刘旭光[1] 符冬菊[1] 李天保[2] 杨永珍[2] 许并社[2] 

机构地区：[1]太原理工大学教育部新材料界面与工程重点实验室 [2]太原理工大学材料科学与工程学院,太原博士生030024

出　　处：《煤炭转化》2006年第4期1-4,共4页Coal Conversion

基　　金：国家"973"规划项目(2004CB217808);国家自然科学基金重大研究计划项目(90306014);国家自然科学基金资助项目(20471041);山西省留学人员科研项目(200428);'山西省自然科学基金资助项目(20051018).

摘　　要：以淄博贫煤为原料,用射频等离子体法合成碳纳米管(carbon nanotubes,CNTs)和纳米洋葱状富勒烯(nano-structured onion-like fullerenes,NSOFs),运用场发射扫描电子显微镜(FE-SEM)和高分辨透射电子显微镜(HRTEM)对产物进行了表征和分析.结果表明:以淄博贫煤为原料制备出CNTs和NSOFs,CNTs直径分布均匀,约为10nm左右,准球状的NSOFs直径分布在8nm^30nm之间,石墨化程度较高;并对不同变质程度的煤制备富勒烯的生成机理进行了比较与讨论.Carbon nanotubes （CNTs） and nano-structured onion-like fullerenes （NSOFs） were synthesized from Zibo coal by radio frequency plasma. Field-emission scanning electron microscopy （FE-SEM） and high resolution transmission electron microscope （HRTEM） were used to characterize the morphologies and structures of the products. Results indicated that CNTs and NSOFs with high degree of graphitization could be prepared from Zibo coal, the diameters of CNTs were about 10 nm and the diameters of quasi-spherical NSOFs were from 8 nm to 30 nm. The formation mechanism of different metamorphic grade coal-derived fullerenes was also discussed.

关 键 词：煤 富勒烯 射频等离子体 

分 类 号：TQ530[化学工程—煤化学工程]