Journal ArticleDOI
Process Parameter Interaction Effects during Carbon Nanotube Synthesis in Fluidized Beds
TLDR
In this article, the interaction effects between temperature, catalyst properties, fluidization conditions, and deposition time during carbon nanotube (CNT) synthesis by chemical vapor deposition in a fluidized bed were investigated.Abstract:
The interaction effects between temperature, catalyst properties, fluidization conditions, and deposition time during carbon nanotube (CNT) synthesis by chemical vapor deposition in a fluidized bed were investigated. While numerous investigations have attempted to correlate process parameters with CNT characteristics, selectivity and yield, the interaction between process parameters is often ignored. Parametric interactions in this process have been investigated using a factorial design methodology. Besides the main effects of synthesis temperature, deposition time, and catalyst type, the interaction parameters temperature−time and temperature−catalyst were found to significantly influence the resultant carbon and CNT yields. These results lay the foundation for a detailed parametric analysis toward the optimization of CNT synthesis in fluidized beds, which takes into account these interaction effects.read more
Citations
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Journal ArticleDOI
Methane decomposition to COx-free hydrogen and nano-carbon material on group 8–10 base metal catalysts: A review
TL;DR: In this paper, a review of the recent advances in the reaction mechanism and kinetics on group 8-10 base metal catalysts is presented, with special attention paid to the roles of metal particles and the deactivation mechanism of the catalyst during the reaction.
Journal ArticleDOI
Upcycling waste plastics into carbon nanomaterials: A review
TL;DR: In this paper, a special application of the particular chemical recycling route that converts polymers into carbon-based nanomaterials is discussed, where the authors take advantage of the high carbon content of waste polymers, as well as of their high energy content, to achieve a cost-effective, environmentally-friendly, and self-sustaining production of carbon nano-materials.
Journal ArticleDOI
Fluidized bed catalytic chemical vapor deposition synthesis of carbon nanotubes-a review
Firoozeh Danafar,Ahmadun Fakhru’l-Razi,Ahmadun Fakhru’l-Razi,Mohd Amran Mohd Salleh,Dayang Radiah Awang Biak +4 more
TL;DR: In this article, a general overview of the key parameters in the CVD formation of carbon nanotubes is discussed, and the focus is then shifted to the fluidized bed reactors as an alternative for commercial production of CNTs.
Journal ArticleDOI
Fluidized bed synthesis of carbon nanotubes – A review
Kinshuk Dasgupta,Kinshuk Dasgupta,Jyeshtharaj B. Joshi,Jyeshtharaj B. Joshi,Srikumar Banerjee,Srikumar Banerjee +5 more
TL;DR: In this article, a review of the literature on nanoparticle fluidization, different forces involved in it and the hydrodynamics of a nano-agglomerate fluidized bed is presented.
Journal ArticleDOI
Vertically aligned carbon nanotube arrays grown on a lamellar catalyst by fluidized bed catalytic chemical vapor deposition
TL;DR: In this article, a large amount of vertically aligned carbon nanotube (CNT) arrays were grown among the layers of vermiculite in a fluidized bed reactor, which was used as catalyst carrier.
References
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Journal ArticleDOI
Small but strong: A review of the mechanical properties of carbon nanotube–polymer composites
TL;DR: In this article, a review of the progress to date in the field of mechanical reinforcement of polymers using nanotubes is presented, and the most promising processing methods for mechanical reinforcement are discussed.
Journal ArticleDOI
Carbon Nanofibers: Catalytic Synthesis and Applications
Krijn P. de Jong,John W. Geus +1 more
TL;DR: A review on the growth of nanofibers using metallic particles as a catalyst to precipitate the graphitic carbon can be found in this paper, where the authors summarize some of the earlier literature that has contributed greatly to understand the nucleation and growth of carbon carbon and nanotubes and describe in detail recent progress to control the fiber surface structure, texture, and growth into mechanically strong agglomerates.
Journal ArticleDOI
Methods for Preparation of Catalytic Materials
TL;DR: In this article, the authors provide a rationale for each reader to answer the following rhetorical questions: what are the properties which determine the performance of a catalytic material; how can these properties be introduced, developed, and/or improved during preparation?
Journal ArticleDOI
Thermogravimetric Analysis of the Oxidation of Multiwalled Carbon Nanotubes: Evidence for the Role of Defect Sites in Carbon Nanotube Chemistry
David Bom,Rodney Andrews,David Jacques,John E. Anthony,Bailin Chen,Mark S. Meier,John P. Selegue +6 more
TL;DR: In this paper, the authors showed that multiwalled nanotubes (MWNTs) annealed at 2200 to 2800 °C are more air stable than as-produced MWNTs.
Journal ArticleDOI
Production of carbon nanotubes
Catherine Journet,P. Bernier +1 more
TL;DR: In this paper, the authors show that carbon nanostructures such as singlewalled and multi-walled nanotubes (SWNTs and MWNTs) or graphitic polyhedral nanoparticles can be produced using various methods, such as electric arc discharge process, the laser ablation method, or the solar tech- nique.