The production of carbon nanotubes from carbon dioxide:challenges and opportunities

作     者：Geoffrey S.Simate Sunny E.Iyuke Sehliselo Ndlovu Clarence S.Yah Lubinda F.Walubita 

作者机构：School of Chemical and Metallurgical EngineeringUniversity of the Witwatersrand TTI-Texas A&M University SystemCollege Station 

出 版 物：《Journal of Natural Gas Chemistry》 (天然气化学杂志（英文版）)

年 卷 期：2010年第19卷第5期

页      面：453-460页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：supercritical CO2 CO2 reduction chemical vapour decomposition(CVD) carbon nanotubes ferrite catalysts 

摘      要：Recent advances in the production of carbon nanotubes （CNTs） are reviewed with an emphasis on the use of carbon dioxide （CO2） as a sole source of carbon. Compared to the most widely used carbon precursors such as graphite, methane, acetylene, ethanol, ethylene, and coal-derived hydrocarbons, CO2 is competitively cheaper with relatively high carbon yield content. However, CNT synthesis from CO2 is a newly emerging technology, and hence it needs to be ex- plored further. A theoretical and analytical comparison of the cur- rently existing CNT-CO2 synthesis techniques is given including a review of some of the process parameters （i.e., temperature, pres- sure, catalyst, etc.） that affect the CO2 reduction rate. Such analysis indicates that there is still a fundamental need to further explore the following aspects so as to realize the full potential of CO2 based CNT technology： （1） the CNT-CO2 synthesis and formation mechanism, （2） catalytic effects of transitional metals and mechanisms, （3） uti- lization of metallocenes in the CNT-CO2 reactions, （4） applicability of ferrite-organometallic compounds in the CNT-CO2 synthesis reactions, and （5） the effects of process parameters such as temperature, etc.