文献类型：会议论文

英文题名：Low temperature large scale CVD synthesis of nano onion-like fullerenes

作者：Chen, Leishan[1];Wang, Cunjing[1]

通讯作者：Chen, LS[1]

机构：[1]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Peoples R China

第一机构：新乡学院化学化工学院

通讯机构：[1]corresponding author), Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Peoples R China.|[110713]新乡学院化学化工学院;[11071]新乡学院;

会议论文集：2nd International Conference on Mechatronics and Intelligent Materials (MIM 2012)

会议日期：MAY 18-19, 2012

会议地点：Guilin, PEOPLES R CHINA

语种：英文

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

摘要：Synthesis reactions were carried out by chemical vapor deposition using iron catalyst supported on aluminum hydroxide at 400 degrees C and 420 degrees C, in the presence of argon as carrier gas and acetylene as carbon source. The aluminum hydroxide support was separated by refluxing the samples in 40% NaOH solution for 2 h and 36% HCl solution for 24 h, respectively. The samples were characterized by field-emission scanning electron microscopy, energy dispersive spectroscopy, high-resolution transmission electron microscopy and X-ray diffraction. The results show that carbon nanotubes were the main products at 420 degrees C, while large scale high purity nano onion-like fullerenes encapsulating Fe3C, with almost uniform sizes ranging from 10-50 nm, were obtained at the low temperature of 400 degrees C.