材料科学
碳纳米管
催化作用
介孔材料
碳纳米管负载催化剂
环己烷
氧化镍
拉曼光谱
氧化物
化学工程
扫描电子显微镜
非阻塞I/O
碳纤维
无机化学
碳纳米纤维
纳米技术
复合材料
有机化学
复合数
化学
冶金
工程类
物理
光学
作者
L. John Kennedy,J. Judith Vijaya,G. Sekaran,Julie Ann Joseph,J. Daisy Vimala Rani,John Pragasam
标识
DOI:10.1016/j.matlet.2006.03.099
摘要
Multiwalled carbon nanotubes were synthesized using Ni–Mo–Mg oxide catalyst prepared by sol–gel technique. Carbon nanotubes were formed in situ by the reduction of nickel oxide (NiO) and molybdenum oxide (MoO3) to Ni and Mo by a gas mixture of nitrogen, hydrogen and cyclohexane at 750 °C. Scanning Electron Microscopy (SEM) was used to confirm the formation of carbon nanotubes (CNTs). The pore size distribution of carbon nanotubes (CNTs) was investigated by N2 adsorption and desorption. It was found that the pore size fell into the mesopore range: 2 < d < 50 nm. Interpretation was also made using Raman spectroscopy, Diffuse reflectance spectroscopy, X-ray diffraction and ESR spectra. This method is found to produce a very high yield weighing over 20 times of the catalyst. Based on the experimental conditions and results obtained a possible growth mechanism of the carbon nanotubes is proposed.
科研通智能强力驱动
Strongly Powered by AbleSci AI