文献类型：会议论文

中文题名：Synthesis of carbon onions with high purity by chemical vapor deposition

作者：Chen Leishan[1];Wang Cunjing[1];

机构：[1]College of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang 453003, China;

第一机构：新乡学院化学化工学院

会议论文集：2012 The 2nd International Conference on Biotechnology,Chemial and Materials Engineering(第二届生物、化工和材料工程国际会议(CBCME2012))论文集

会议日期：20121228

会议地点：厦门

主办单位：香港控制工程与信息科学协会

语种：英文

中文关键词：Onion-like fullerenes;Aluminum hydroxide;Irion;Chemical vapor deposition

摘要：Nano-carbon materials were synthesized by decomposing acetylene at 400 ℃ using iron supported on alumina as catalyst.The catalysts contain about 0.3 and 5.2 wt% iron.The products were refluxed in concentrated HCl at 80℃ for 36 h in order to remove the catalyst support.The samples were examined by transmission electron microscopy and X-ray diffraction.The results show that carbon onions surrounding Fe3C core were obtained using the catalyst containing 0.3 wt% iron and these carbon onions had a structure of stacked graphitic fragments,with diameters in the range 15-50 nm.