A simple thermal CVD method for carbon nanotube synthesis on stainless steel 304 without the addition of an external catalyst

Baddour, Carole E.; Fadlallah, Faysal; Nasuhoglu, Deniz; Mitra, Reema; Vandsburger, Leron; Meunier, Jean‐Luc

doi:10.1016/j.carbon.2008.10.038

Cited by 163 publications

(90 citation statements)

References 13 publications

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“…Multiwalled carbon nanotubes have been successfully grown over stainless steel catalytic meshes, by means of CVD methods, in controllable methane diffusion flames, [21] and C 2 H 2 , [22] C 2 H 2 /NH 3, [23] and C 2 H 6 [24] atmospheres. However, attention is invariably paid only to the growth of CNTs, without detailed analyses of the catalytic performance regarding hydrogen production, hydrocarbon conversion efficiency, and the energetic implications.…”

Section: Resultsmentioning

confidence: 99%

Generating Hydrogen Gas from Methane with Carbon Captured as Pure Spheroidal Nanomaterials

Cornejo

Zhang

Gao

et al. 2011

Chemistry A European J

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Energy production by using hydrogen gas as a feedstock is considered to be one of the keys to creating clean energy, with the proviso that the gas is generated in a sustainable way with no emissions. A simple, self-sustaining process generating hydrogen gas from methane using inexpensive stainless steel wire-mesh catalysts at elevated temperatures (800 °C) is reported. A theoretical analysis of the production of electricity by this process revealed peak chain energy efficiencies up to 21% (emission free) when using a percentage of the produced hydrogen (approximately 40% of purified yield) as the heat source. In addition, a practical method has been developed to purify the carbon byproduct, affording essentially pure highly graphitic spheroidal carbon for advanced materials applications.

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Section: Resultsmentioning

confidence: 99%

Generating Hydrogen Gas from Methane with Carbon Captured as Pure Spheroidal Nanomaterials

Cornejo

Zhang

Gao

et al. 2011

Chemistry A European J

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“…As research materials, we used aluminum powder (ASD6) and multi-walled carbon nanotubes produced by chemical vapor deposition (CVD) [10]. Powder mixture is prepared using a ball milling during 24 hours.…”

Section: Materials and Methods Of Experimentsmentioning

confidence: 99%

Influence the carbon nanotubes on the structure and mechanical properties of aluminum-based metal matrix composites

Vorozhtsov¹,

Kvetinskaya²,

Khurstalyov³

et al. 2016

AIP Conference Proceedings

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The mechanical properties measurement of multiwall carbon nanotube reinforced nanocrystalline aluminum matrix composite AIP Conference Proceedings 1661, 080025 (2015) Abstract. It is known that metal matrix composites reinforced with non-metallic inclusions are of great interest in various fields of technology owing to a good combination strength to weight ratio. Carbon nanotubes (CNTs) are expected to be ideal reinforcements for composite materials due to their high modulus and low density. In this paper metal matrix composites were obtained through hot pressing of powder mixtures Al-1% and 5% carbon nanotubes at different isothermal time. Hardness and density of materials went up with an increase in the isothermal holding time. However, the hardness of composites decreases with an increase the nanotubes content in the material.

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“…Moreover, stainless steels (types 304,316,316L) have been reported as feasible catalysts in CNT synthesis from hydrocarbon carbon donors, such as C2H2, C6H6 and C2H6 [123][124][125][126][127][128] . A review of the literature shows that there have been many attempts at improving the CNT generation by using different pre-treatment methods [123,125,[129][130][131][132][133][134][135] .…”

Section: Previous Work On Catalystsmentioning

confidence: 99%

“…This method improved the yield by 2%. Baddour et al [127] have applied a combination of washing the T304 stainless steel in acetone or acids and heat treating in N2. Using this method, they reported 97% coverage of the catalyst with CNTs.…”

Section: Previous Work On Catalystsmentioning

confidence: 99%

“…However, additional work was deemed necessary on the selection of the right catalyst substrate and its appropriate pre-treatement method in view of the work of Baddour et al [127] and Zhuo et al [136] were washed with isopropyl alcohol in an ultrasonic bath and, then, they were subjected to different pretreatment methods. A fixed amount of 4 g of polyethylene was used in the experiment as the feedstock.…”

Section: The Goal Of This Researchmentioning

confidence: 99%

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Synthesis of nano-carbons from different waste plastics and diverse catalysts

Wei¹

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Polymers have important and widespread applications in modern materials due to their excellent formability, chemical stability, light weight and low cost. Their production has increased exponentially over the last 60 years after their introduction to the markets from 1.5 million tons/year in 1950 to 322 million tons per year in 2015. Polymeric materials are often discarded after a single use, and post-consumer waste has become a very serious environmental problem, as it is no-biodegradable. Therefore, different recycling, reuse and, even upcycling methods for waste plastics have been investigated. This research aimed at systematically investigating the influence of the types of stainless steel catalysts and their pretreatment on the formation of nanotubes. The targeted polymer feedstocks were postconsumer polyethylene (PE), polyethylene terephthalate (PETE), polypropylene (PP) and polystyrene (PS) as pellets, clippings or powders. The polymers were pyrolyzed in an inert nitrogen atmosphere in an electrically heated furnace kept at 800 °C. Their effluent gases from this furnace, containing the gaseous pyrolyzates of the polymers, were then channeled to a separate electrically-heated furnace, were the catalyst substrates were heated to 800 °C. Therein synthesis of carbon nanotubes took place by chemical vapor deposition (CVD) in nitrogen. The catalytic substrates used for the nanoparticle growth were T304, T316, and T316L stainless steel meshes. The substrates were used as received, or pretreated by acid wash and/or heat-treated in air or in nitrogen at 800 °C. The produced nanomaterials were characterized by the use of SEM and TEM.

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A simple thermal CVD method for carbon nanotube synthesis on stainless steel 304 without the addition of an external catalyst

Cited by 163 publications

References 13 publications

Generating Hydrogen Gas from Methane with Carbon Captured as Pure Spheroidal Nanomaterials

Generating Hydrogen Gas from Methane with Carbon Captured as Pure Spheroidal Nanomaterials

Influence the carbon nanotubes on the structure and mechanical properties of aluminum-based metal matrix composites

Synthesis of nano-carbons from different waste plastics and diverse catalysts

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