Modeling the Growth of Carbon Nanotubes in a Floating Catalyst Reactor

被引：17
作者：
Samandari-Masouleh, Leila [1 ]
Mostoufi, Navid [1 ]
Khodadadi, Abbasali [1 ]
Mortazavi, Yadollah [1 ]
Maghrebi, Morteza [2 ]
机构：
[1] Univ Tehran, Coll Engn, Sch Chem Engn, Oil & Gas Proc Ctr Excellence, Tehran, Iran
[2] Ferdowsi Univ Mashhad, Fac Engn, Dept Chem Engn, Mashhad, Iran
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2012年 / 51卷 / 03期
关键词：
CHEMICAL-VAPOR-DEPOSITION; CVD SYNTHESIS; FERROCENE; XYLENE;
D O I：
10.1021/ie201137j
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
An improved model for growth of multiwall carbon nanotube (MWCNT) arrays in a floating catalyst (FC) reactor is developed. The model predicts the height of MWCNT arrays produced from xylene as a carbon source and ferrocene as the catalyst precursor. Based on this model, growth of CNTs was studied at various operating conditions, such as temperature, catalyst concentration in the feed, and xylene concentration. It was shown that the longest carbon nanotubes can be achieved in the temperature range 825-875 degrees C. Increases in the concentrations of both xylene and ferrocene increase the average height of CNTs. During the FC process, catalyst deactivation was observed due to formation of amorphous carbon on the surface of CNTs. Effect of deactivation on the model was empirically correlated with a simple first order deactivation rate.
引用
收藏
页码：1143 / 1149
页数：7
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