新型炭材料Issue(5)：398-403,6.
纳米洋葱碳的制备及其纯化研究
Fabrication and purification of carbon nano onions
摘要
Abstract
Carbon nano onions ( CNOs) with diameters of 70-100 nm were fabricated by chemical vapor deposition at 800 ℃, using methane as carbon source and high-temperature steam treated 316 stainless steel mesh as catalyst. The CNOs were isolated from the substrate by HNO3 refluxing, calcination in air at 500 ℃ and magnetic separation. The morphology, microstructures and magnetic properties of the CNOs were characterized by SEM, TEM, XRD, Raman spectroscopy, FT-IR spectroscopy and vibration sample magnetometer tests. Results showed that the surface-attached catalyst particles and amorphous carbon can be effectively re-moved from raw CNOs through HNO3-refluxing and calcination. Magnetic separation can selectively remove the CNOs encapsula-ting a [ Ni,Fe] magnetic catalyst from the CNOs that are hollow.关键词
化学气相沉积/纳米洋葱碳/磁选/纯化Key words
CVD/Carbon nano-onions/Magnetic separation/Purification分类
化学化工引用本文复制引用
张卫珂,付俊杰,常杰,张敏,杨艳青,高利珍..纳米洋葱碳的制备及其纯化研究[J].新型炭材料,2014,(5):398-403,6.基金项目
山西省回国留学人员科研资助(2012-035) （2012-035）
太原理工大学人才引进资助(tyut-rc201101a).@@@@Shanxi Scholarship Council of China (2012-035) （tyut-rc201101a）
Project for Importing Talent of Taiyuan University of Technolo-gy(tyut-rc201101a) （tyut-rc201101a）
