糊精及聚乙二醇水溶液放电制备洋葱状富勒烯  

Synthesis of OLFs by Arc Discharge in Dextrin and Polyethylene Glycol

作　　者：刘雯[1] 张晓艳[1] 杨永珍[2] 刘旭光[3] 许并社[2] 

机构地区：[1]太原科技大学化学与生物工程学院,太原030021 [2]太原理工大学材料科学与工程学院,太原030024 [3]太原理工大学化学化工学院,太原030024

出　　处：《太原科技大学学报》2009年第3期267-270,共4页Journal of Taiyuan University of Science and Technology

摘　　要：考察了不同有机介质对制备碳纳米材料的影响,以糊精(C6H10O5)n.xH2O)水溶液为放电介质,石墨做电极,成功制备了纳米洋葱状富勒烯(Onion-like Fullerenes:OLFs)和多壁碳纳米管。利用场发射扫描电子显微镜,高分辨透射电镜和X-射线衍射对所得产物进行了表征。结果表明:OLFs和多壁碳纳米管富含在阴极沉积物中且形貌规则,石墨化程度高;漂浮在糊精溶液表面的产物中没有OLFs和碳管的生成。以聚乙二醇水溶液为放电介质,未发现洋葱状富勒烯,但有大量的碳管和碳球存在,研究表明利用无毒有机介质水溶液制备碳纳米材料是可行的。The effect of different organic media on synthesis of carbon nanomaterials is discussed, Onion-like Fullerenes （OLFs） and Multi-walled carbon nanotubes are synthsized by arc discharge in dextrin while graphite is used as electrodes. Field-emission scanning electron microscopy （FESEM） and High resolution transmission electron microscopy （HRTEM） and X-ray diffraction （XRD） techniques are used to characterize morphologies and structures of the products. Results show that OLFs and Multi-walled carbon nanotubes with large amount were observed in the deposit formed on the surface of cathode. The arc discharge in polyethylene glycol solution is faworable for the production of carbon nanotubes rather than NOLFs.

关 键 词：洋葱状富勒烯 多壁碳纳米管 电弧放电 糊精 聚乙二醇 

分 类 号：TQ127.11[化学工程—无机化工]