摘要
通过氢电弧法,制备了碳化硅纳米粒子,并以碳化硅纳米粒子为催化剂,乙炔为碳源,在管式炉中利用化学气相沉积(CVD)法制备了纳米碳纤维(CNFs)。利用X射线衍射谱仪(XRD),扫描电子显微镜(SEM),高分辨透射电子显微镜(HRTEM),对碳化硅和碳纤维进行了形貌及结构分析,结果表明,得到的碳化硅为结晶良好的面心立方的β-SiC晶体,以此为催化剂得到的碳纤维以碳化硅粒子为中心对称生长,直径与碳化硅粒子直径大致相当,当催化剂为单晶时产物多为螺旋型纳米碳纤维,而当催化剂颗粒为多晶时,得到的多为直线型碳纤维。
The carbon nanofibers（CNFs） were obtained by chemical vapor deposited method in a tubular furnace,using SiC nanoparticles prepared by hydrogen arc plasma method as catalyst and acetylene as carbon source. The SiC nanoparticles and CNFs were characterized by X-ray diffraction（XRD）,scanning electron microscopy（SEM）,and transmission electron microscope（TEM）. The result shows that the SiC nanoparticles were FCCβ-SiC（3C-SiC） crystal; the CNFs were symmetrically grown with the catalyst particles as the center; the diameter of the CNFs were roughly similar to the diameter of the SiC nanoparticles; the CNFs were helical when the catalyst particles were single crystal,and were lineary when the catalyst particles were polycrystal.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2014年第7期1713-1717,共5页
Journal of Synthetic Crystals
基金
国家自然科学基金(51077075)
电力设备电气绝缘国家重点实验室资助项目(EIPE10207)
关键词
碳化硅
碳纤维
氢电弧法
化学气相沉积
SiC
carbon fiber
hydrogen arc plasma
chemical vapor deposition
