Kinetic study of carbon nanotubes synthesis by fluidized bed chemical vapor deposition

Philippe, Régis; Serp, Philippe; Kalck, P.; Kihn, Y.; Bordère, Serge; Plee, D.; Gaillard, Patrice; Bernard, Daniel; Caussat, Brigitte

doi:10.1002/aic.11676

Cited by 44 publications

(36 citation statements)

References 26 publications

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“…[217] 878 www.chemsuschem.org for ethylene, hydrogen, and iron were found to be 0.75, 0, and 0.28, respectively. [220] Simulation showed that the productivity of MWCNTs can reach 8 kg h À1 in a 45 cm diameter reactor operated under semi-batch conditions. [221] In the growth of aligned CNTs, the CNTs have similar lengths, and it is easy to design in situ methods to monitor the kinetics of aligned CNT growth.…”

Section: Kinetics Of Cnt Growthmentioning

confidence: 99%

Carbon Nanotube Mass Production: Principles and Processes

et al. 2011

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Our society requires new materials for a sustainable future, and carbon nanotubes (CNTs) are among the most important advanced materials. This Review describes the state-of-the-art of CNT synthesis, with a focus on their mass-production in industry. At the nanoscale, the production of CNTs involves the self-assembly of carbon atoms into a one-dimensional tubular structure. We describe how this synthesis can be achieved on the macroscopic scale in processes akin to the continuous tonne-scale mass production of chemical products in the modern chemical industry. Our overview includes discussions on processing methods for high-purity CNTs, and the handling of heat and mass transfer problems. Manufacturing strategies for agglomerated and aligned single-/multiwalled CNTs are used as examples of the engineering science of CNT production, which includes an understanding of their growth mechanism, agglomeration mechanism, reactor design, and process intensification. We aim to provide guidelines for the production and commercialization of CNTs. Although CNTs can now be produced on the tonne scale, knowledge of the growth mechanism at the atomic scale, the relationship between CNT structure and application, and scale-up of the production of CNTs with specific chirality are still inadequate. A multidisciplinary approach is a prerequisite for the sustainable development of the CNT industry.

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Section: Kinetics Of Cnt Growthmentioning

confidence: 99%

Carbon Nanotube Mass Production: Principles and Processes

et al. 2011

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“…The indicated peaks in diffractogram at 2θ identical to 25.56, 35.12, 37.75, 43.32, 52.52, 57.47, 66.47 and 68.17 degree have relatively high intensity and symmetry. These peaks correspond to the crystalline structure of alumina (Tran et al 2007;Hsieh et al 2009;Philippe et al 2009). Hence, the predominant species on these samples are only alumina, which obviously comes from the catalyst support particles.…”

Section: X-ray Diffraction Analysismentioning

confidence: 95%

From Nanotechnology to Nanoengineering

Elnashaie

Danafar

Hashemipour

2015

Nanotechnology for Chemical Engineers

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“…Such a process is currently employed at a semi-industrial scale for MWCNTs production. 6 The apparent kinetic equations and the physical laws of evolution of the FB features established in Part 1 of this study have thus been implemented in a modified version of the Kato and Wen model. 7,8 The main assumptions and equations of the Kato and Wen model will be first presented.…”

Section: Introductionmentioning

confidence: 99%

Kinetic modeling study of carbon nanotubes synthesis by fluidized bed chemical vapor deposition

Philippe¹,

Serp²,

Kalck³

et al. 2008

AIChE Journal

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in Wiley InterScience (www.interscience.wiley.com).The kinetic and physical laws developed in the first part of the study have been implemented in a modified version of the bubbling bed Kato and Wen model to represent multiwalled carbon nanotubes (MWCNTs) synthesis by catalytic chemical vapor deposition from ethylene as carbon source and using an Fe/Al 2 O 3 catalyst. The absolute deviation for MWCNT productivity between experimental results of Part 1 and simulations is of 17.3% when only considering experiments for which the bed is mainly in bubbling regime. The influence of the main operating parameters on the evolutions with time of the species molar fractions, the weight of MWCNTs formed, and the bed characteristics has been numerically studied. Such capabilities can help designing new reactors. Finally, the model has been used for scale up purposes, by increasing the reactor diameter and catalyst weight. Simulations have shown that the process productivity could reach 74 tons/year of MWCNTs in a reactor 45 cm in diameter. 2008 American Institute of Chemical Engineers AIChE J, 55: [465][466][467][468][469][470][471][472][473][474] 2009

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Kinetic study of carbon nanotubes synthesis by fluidized bed chemical vapor deposition

Cited by 44 publications

References 26 publications

Carbon Nanotube Mass Production: Principles and Processes

Carbon Nanotube Mass Production: Principles and Processes

From Nanotechnology to Nanoengineering

Kinetic modeling study of carbon nanotubes synthesis by fluidized bed chemical vapor deposition

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