Synthesis of multi-wall carbon nanotubes by the pyrolysis of ethanol on Fe/MCM-41 mesoporous molecular sieves |
| |
Authors: | Qian Zhao Yanhui Li Xuping Zhou Tingshun Jiang Changsheng Li Hengbo Yin |
| |
Institution: | 1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu Province, PR China;2. School of Material Science & Engineering, Jiangsu University, Jiangsu Zhenjiang 212013, Jiangsu Province, PR China |
| |
Abstract: | Ordered hexagonal arrangement MCM-41 mesoporous molecular sieves were synthesized by the traditional hydrothermal method, and Fe-loaded MCM-41 mesoporous molecular sieves (Fe/MCM-41) were prepared by the wet impregnation method. Their mesoporous structures were testified by X-ray diffraction (XRD) and the N2 physical adsorption technique. Carbon nanotubes (CNTs) were synthesized by the chemical vapor deposition (CVD) method via the pyrolysis of ethanol at atmospheric pressure using Fe/MCM-41 as a catalytic template. The effect of different reaction temperatures ranging from 600 to 800 °C on the formation of CNTs was investigated. The resulting carbon materials were characterized by various physicochemical techniques such as transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and Raman spectroscopy. The results show that multi-wall carbon nanotubes (MWCNTs) with an internal diameter of ca. 7.7 nm and an external diameter of ca. 16.9 nm were successfully obtained by the pyrolysis of ethanol at 800 °C utilizing Fe/MCM-41 as a catalytic template. |
| |
Keywords: | Carbon nanotubes Mesoporous molecular sieve Chemical vapor deposition Ethanol Pyrolysis |
本文献已被 ScienceDirect 等数据库收录! |
|