Flame synthesis of carbon nanotubes with high density on stainless steel mesh

Zhou, Qihang; Li, Chunzhong; Gu, Feng; Du, Haijuan

doi:10.1016/j.jallcom.2007.09.021

Cited by 25 publications

(15 citation statements)

References 33 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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“…The photocatalytic efficiency of anatase titania has proven to be better than rutile titania, which is thus more favorable for filtering polluted air and wastewater [13]. Additionally, the ability to control characteristics of the functional nanoparticles or nanotubes through flame synthesis would improve the final product and save energy [14]. In real-life applications, titania nanoparticles are not only widely employed as white pigments, photocatalysts and semiconductors but are also applied in dye-sensitized solar cells [15,16].…”

Section: Introductionmentioning

confidence: 99%

Combustion synthesis of titania nanoparticles in a premixed methane flame

Yang

2010

Journal of Alloys and Compounds

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“…It would be very interesting to prepare nanomaterials with a novel structure based on the chemical engineering principle and methods. Novel metal oxide nanomaterials, for example, nanoparticles [9][10][11][12], nanotubes [13,14], nanofibers [15], hollow nanostructured microspheres [16,17], and also core-shell nanocomposites [18] have been prepared by gas flame combustion through adjusting the parameters of fluid mixing, flame temperature and the residence time distribution. Figure 1 shows the nanomaterials that have been synthesized by gas flame combustion.…”

Section: Synthesis and Structure Control Of Nanomaterialsmentioning

confidence: 99%

Structure controlling and process scale-up in the fabrication of nanomaterials

2010

Front. Chem. Eng. China

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Nanotechnology is already having a significant commercial impact, and will very certainly have a much greater impact in the future. The research on process engineering and scale-up will be very important for the commercial production and application of nanomaterials, because the properties and structure of nanomaterials are not only determined by the nucleation and growth process, but also strongly affected by the engineering properties, such as the mixing, the heat and mass transfer, and also the distribution of temperature, concentration, etc. This paper will present some research work in our laboratory on the fabrication of nanomaterials. Based on the chemical engineering principle and methods, many kinds of novel nanomaterials can be synthesized and their structure can be easily controlled through adjusting the parameters of the fluid mixing, and the distribution of temperature, residence time and concentration, etc. By using the micro-mixing, heat and mass transfer and reaction control methods, the host-guest nanocomposites have been assembled and assumed as the novel electroanalytical sensing nanobiocomposite materials. Based on the principles of chemical engineering, the manufacturing technologies for magnetic powders, calcium carbonate, and titanium dioxide have been developed for commercial-scale production, and the largest production scale has reached 15 kt/year.

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Flame synthesis of carbon nanotubes with high density on stainless steel mesh

Cited by 25 publications

References 33 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

Combustion synthesis of titania nanoparticles in a premixed methane flame

Structure controlling and process scale-up in the fabrication of nanomaterials

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