高压物理学报2017，Vol.31Issue(3)：209-214,6.DOI:10.11858/gywlxb.2017.03.001
气相爆轰法合成含铁多壁碳纳米管
Gaseous Detonation Synthesis of Iron-Encapsulated Multi-Walled Carbon Nanotubes
摘要
Abstract
Multi-walled carbon nanotubes (MWCNTs) were synthesized via the detonation of methane and oxygen as precursors and ferrocene as catalyst in a sealed stainless steel pressure vessel.Then the MWCNTs were characterized by X-ray diffraction (XRD),transmission electron microscopy and Raman spectroscopy.The results indicate that MWCNTs present appearance of entangled morphologies with outer diameters of 20-50 nm and lengths up to several microns,which have an excellent tubular structure and a relatively high graphitization degree;A small number of iron (Fe) nanoparticles remaining in the MWCNTs consist of Fe3C,which results from the continuous supply of carbon source and iron catalyst.XRD analysis shows that,after the detonation reaction,the catalyst is broken down and reduced to metal simple substance.Through the experimental results and theoretical analysis,we propose the formation mechanism of gas detonation synthesis of carbon nanotubes.关键词
气相爆轰法/多壁碳纳米管/二茂铁/形成机理Key words
gaseous detonation method/multi-walled carbon nanotubes/ferrocene/formation mechanism分类
数理科学引用本文复制引用
杨瑞,李晓杰,闫鸿浩..气相爆轰法合成含铁多壁碳纳米管[J].高压物理学报,2017,31(3):209-214,6.基金项目
国家自然科学基金(10872044,10602013,10972051,10902023) （10872044,10602013,10972051,10902023）
辽宁省自然科学基金(20082161) （20082161）
北京高等学校青年英才计划项目 （）
