Production of High Purity Multi-Walled Carbon Nanotubes from Catalytic Decomposition of Methane

Abstract

Acid-based purification process of multi-walled carbon nanotubes (MWNTs) produced via catalytic decomposition of methane with NiO/TiO 2 as a catalyst is described. By combining the oxidation in air and the acid refluxes, the impurities, such as amorphous carbon, carbon nanoparticles, and the NiO/TiO 2 catalyst, are eliminated. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images confirm the removal of the impurities. The percentage of the carbon nanotubes purity was analyzed using thermal gravimetric analysis (TGA). Using this process, 99.9 wt% purity of MWNTs was obtained. © 2006 CAS/DICP.

Citation

Hong, K. B., Ismail, A. A. B., Mahayuddin, M. E. B. M., Mohamed, A. R., & Zein, S. H. S. (2006). Production of High Purity Multi-Walled Carbon Nanotubes from Catalytic Decomposition of Methane. Journal of natural gas chemistry / Chengdu Institute of Organic Chemistry, the Chinese Academy of Sciences, 15(4), 266-270. https://doi.org/10.1016/S1003-9953%2807%2960004-8

• Journal Article Type: Article
• Publication Date: 2006-12
• Deposit Date: Jul 7, 2020
• Journal: Journal of Natural Gas Chemistry
• Print ISSN: 1003-9953
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 15
• Issue: 4
• Pages: 266-270
• DOI: https://doi.org/10.1016/S1003-9953%2807%2960004-8
• Keywords: Multi-walled carbon nanotubes; Purification; Acid refluxes; Oxidation; Methane; decomposition
• Public URL: https://hull-repository.worktribe.com/output/550015
• Publisher URL: https://www.sciencedirect.com/science/article/abs/pii/S1003995307600048?via%3Dihub