Fluidized bed catalytic chemical vapor deposition synthesis of carbon nanotubes—A review

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 155; no. 1; pp. 37 - 48
• Main Authors: Danafar, Firoozeh, Fakhru’l-Razi, A., Salleh, Mohd Amran Mohd, Biak, Dayang Radiah Awang
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier B.V 01.12.2009; Elsevier
• Subjects: Applied sciences; Carbon nanotube; Catalysis; Catalytic; Catalytic reactions; Chemical engineering; Chemical vapor deposition; Chemistry; Exact sciences and technology; Fluidization; Fluidized bed; General and physical chemistry; Reactors; Synthesis; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Carbon nanotube; Catalytic; Synthesis; Chemical vapor deposition; Fluidized bed; Fluidized bed reactor; Catalytic reaction; Scale effect; Nanostructure; Fluidization; Extrapolation; Storage; Morphology; Production; Chemical properties
• ISSN: 1385-8947; 1873-3212
• DOI: 10.1016/j.cej.2009.07.052

Carbon nanotubes (CNTs) are pure carbon in nanostructures with unique physico-chemical properties. They have brought significant breakthroughs in different fields such as materials, electronic devices, energy storage, separation, sensors, etc. If the CNTs are ever to fulfill their promise as an engineering material, commercial production will be required. Catalytic chemical vapor deposition (CCVD) technique coupled with a suitable reactor is considered as a scalable and relatively low-cost process enabling to produce high yield CNTs. Recent advances on CCVD of CNTs have shown that fluidized-bed reactors have a great potential for commercial production of this valuable material. However, the dominating process parameters which impact upon the CNT nucleation and growth need to be understood to control product morphology, optimize process productivity and scale up the process. This paper discusses a general overview of the key parameters in the CVD formation of CNT. The focus will be then shifted to the fluidized bed reactors as an alternative for commercial production of CNTs.