Selective synthesis of carbon nanotubes and nanocapsules using naphthalene pyrolysis assisted with ferrocene |
| |
Authors: | Pramote Puengjinda Noriaki Sano Wiwut Tanthapanichakoon Tawatchai Charinpanitkul |
| |
Affiliation: | aCenter of Excellence in Particle Technology, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;bDepartment of Chemical Engineering, Kyoto University, Kyoto 615-8510, Japan |
| |
Abstract: | Selective synthesis of well aligned multi-walled carbon nanotubes (MW-CNT) and multi-shelled carbon nanocapsule (MS-CNC) using pyrolysis of naphthalene with the presence of ferrocene was experimentally examined. With higher mole fraction of naphthalene to ferrocene, more MW-CNTs could be synthesized due to higher concentration of carbonaceous precursors emerging from the decomposed naphthalene. Based on kinetic analysis, at lower temperature, MW-CNTs could preferably be synthesized due to the controlled supply of carbonaceous clusters to get onto the surface of Fe clusters. On the other hand, at temperature higher than 900 °C the Fe clusters become more active to catalyze carbonaceous precursors to undergo self assembling process of MS-CNCs. With cheaper cost of naphthalene compared with other high-value hydrocarbons, usage of naphthalene would provide an advantage of reasonably economical synthesis of MW-CNT or MS-CNC. |
| |
Keywords: | Naphthalene Pyrolysis Carbon nanotubes Carbon Nanocapsules |
本文献已被 ScienceDirect 等数据库收录! |
|