A method for structural characterization of the range of cylindrical nanocarbons: Nanotubes to nanofibers

Wal, Randy Vander; Tomasek, Aaron J.; King, James D.

doi:10.1016/j.carbon.2005.06.026

Cited by 12 publications

(7 citation statements)

References 23 publications

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“…2 shows the influence of the number of carbon layers, N layer (from 1 up to 5 in each tube), on the local isotherm with a box of l box = 17.45 nm. Since the differences vanish for a number of layers larger than 3 we used the latter value in the simulations [30].…”

Section: Gcmc Simulationmentioning

confidence: 99%

Determination of the space between closed multiwalled carbon nanotubes by GCMC simulation of nitrogen adsorption

Furmaniak¹,

Terzyk²,

Gauden³

et al. 2008

Journal of Colloid and Interface Science

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Section: Gcmc Simulationmentioning

confidence: 99%

Determination of the space between closed multiwalled carbon nanotubes by GCMC simulation of nitrogen adsorption

Furmaniak¹,

Terzyk²,

Gauden³

et al. 2008

Journal of Colloid and Interface Science

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“…The overall structural distribution of the particles is that the external carbon layer is ordered with an oriented shell and the interior is an amorphous carbon core. The ordered aromatic layers constitute the concentric external shells and the amorphous aromatic hydrocarbons constitute the internal disordered structure. , From HAB = 18.0 mm to HAB = 21.5 mm, extended graphene layers with more organized outer fringes around the nuclei and distinct boundaries (Figure d,e) are observed in soot particles.…”

Section: Results and Discussionmentioning

confidence: 99%

Soot Morphology and Nanostructure Differences between Chinese Aviation Kerosene and Algae-Based Aviation Biofuel in Free Jet Laminar Diffusion Flames

Chang

Yang

et al. 2022

ACS Omega

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Aircraft soot has a significant effect on the air quality and human health. The aim of this study is to investigate the evolution of soot morphology in free jet laminar diffusion flames between Chinese traditional aviation kerosene RP-3 and algae-based aviation biofuels. The differences in height, profile, and structural properties of soot between the RP-3 flame and biofuel flame are determined. A laboratory-made probe sampling method was applied for soot sample collection. Transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and elemental analyzers were used to analyze the collected soot particles. The average particle size of soot increases first and then decreases in both flames, and the size of biofuel primary particles is smaller than that of jet fuel RP-3 particles along the same flame height. At the flame tip, the primary particle sizes of RP-3 soot and biofuel soot are 22.7 and 15.6 mm, respectively. In comparison with the RP-3 soot, the nanostructure of biofuel soot particles along the same flame height exhibits a shorter fringe lattice, a larger fringe tortuosity, and a larger interlayer spacing, which indicate a higher degree of oxidation reactivity. Meanwhile, RP-3 soot particles have a lower H/C atom ratio and have greater intensity in X-ray diffraction, which indicates a more orderly and compact lattice structure. This study provides some references in studying the algae-based biofuel with regard to soot formation.

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“…Wormlike carbon pores are also characteristic for graphitic carbon nanofibers. 20 Moreover, stable periodic pores of this type can be produced by carbonization and activation of carbon precursors (e.g., furfuryl alcohol, phenol-resin monomers, acetylene, sucrose solution) inside novel wormlike silica-type materials used as a template. 51 To the best of our knowledge, no studies have been reported (either experimental or theoretical) dealing with the application of such novel tubular nanoporous carbon materials as media for storage of supercritical fluids.…”

Section: Introductionmentioning

confidence: 99%

“…Inevitably, new types of nanomaterials, which could serve as storage cells to enhance methane load capacity within the transport vessels, would be very appropriate in this case. Novel carbon-based nanomaterials, such as single-walled carbon nanotubes (SWNTs), wormlike SWNTs, double-walled carbon nanotubes (DWNTs), single-walled carbon nanohorns (SWNHs), stacked-cup carbon nanofibers (SCCNT), doped fullerenes, wormlike graphitic carbon nanofibers, bamboo-type multiwalled carbon nanotubes, − and ordered porous carbons have been regarded as promising media for efficient reversible storage of fluids via the physisorption mechanism. It is worthwhile noting that they are lightweight, cheap, chemically inert, thermally stable, and environmentally friendly. , Moreover, progress in the synthesis of novel carbon nanomaterials is unprecedented.…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, we have built an idealized bundle of single-walled wormlike carbon pores which imitate recently observed stable periodic tubular nanotubes synthesized via a process of fullerene fusion in the interior of the SWNTs. , The fascinating coalescence of fullerenes encapsulated in SWNTs is driven by thermal annealing or electron irradiation. Wormlike carbon pores are also characteristic for graphitic carbon nanofibers . Moreover, stable periodic pores of this type can be produced by carbonization and activation of carbon precursors (e.g., furfuryl alcohol, phenol−resin monomers, acetylene, sucrose solution) inside novel wormlike silica-type materials used as a template .…”

Section: Introductionmentioning

confidence: 99%

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Nanoscale Tubular Vessels for Storage of Methane at Ambient Temperatures

Kowalczyk

Solarz

et al. 2006

Langmuir

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Novel carbon nanostructures can serve as effective storage media for methane, a source of "clean energy" for the future. We have used Grand Canonical Monte Carlo Simulation for the modeling of methane storage at 293 K and pressures up to 80 MPa in idealized bundles of (10,10) armchair-type single-walled carbon nanotubes and wormlike carbon pores. We have found that these carbon nanomaterials can be treated as the world's smallest high-capacity methane storage vessels. Our simulation results indicate that such novel carbon nanostructures can reach a high volumetric energy storage, exceeding the US FreedomCAR Partnership target of 2010 (5.4 MJ dm(-3)), at low to moderate pressures ranging from 1 to 7 MPa at 293 K. On the contrary, in the absence of these nanomaterials, methane needs to be compressed to approximately 13 MPa at 293 K to achieve the same target. The light carbon membranes composed of bundles of single-walled carbon nanotubes or wormlike pores efficiently physisorb methane at low to moderate pressures at 293 K, which we believe should be particularly important for automobiles and stationary devices. However, above 15-20 MPa at 293 K, all investigated samples of novel carbon nanomaterials are not as effective when compared with compression alone since the stored volumetric energy and power saturate at values below those of the bulk, compressed fluid.

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A method for structural characterization of the range of cylindrical nanocarbons: Nanotubes to nanofibers

Cited by 12 publications

References 23 publications

Determination of the space between closed multiwalled carbon nanotubes by GCMC simulation of nitrogen adsorption

Determination of the space between closed multiwalled carbon nanotubes by GCMC simulation of nitrogen adsorption

Soot Morphology and Nanostructure Differences between Chinese Aviation Kerosene and Algae-Based Aviation Biofuel in Free Jet Laminar Diffusion Flames

Nanoscale Tubular Vessels for Storage of Methane at Ambient Temperatures

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