Top PDF Specific surface area of carbon nanotubes and bundles of carbon nanotubes
Specific surface area of carbon nanotubes and bundles of carbon nanotubes
... decomposition of hydro- Owing to its nanometric diameter, a CNT has a very carbons or CO over metal nanoparticles, also called carbon large specific surface area (denoted as SSA ...SSA ...
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Specific surface area of carbon nanotubes and bundles of carbon nanotubes
... A. Carbon nanotubes; C. BET surface area; D. Surface areas ...(TEM) and high-resolution electron microscopy Carbon nanotubes (hereafter denoted as CNTs) have (HREM) ...
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High specific surface area carbon nanotubes from catalytic chemical vapor deposition process
... Ž . nantly SWNTs and DWNTs Fig. 4 is calculated to be in the range 900–1000 m 2 r g. This value is in good agreement with the present experimental value Ž 948 m rg showing that a large fraction of the 2 . ...
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Study of the cytotoxicity of CCVD carbon nanotubes
... composition of the catalyst), which was then treated with a concentrated aqueous HCl solution (12M) to separate the CNTs by dissolving all the remain- ing oxide material, as well as unprotected metal particles [ 5 ...
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Hydrogen Storage in High Surface Area Carbon Nanotubes Produced by Catalytic Chemical Vapor Deposition
... microscopy and high-resolution transmis- sion electron microscopy (TEM). The carbon content was analyzed by flash combustion, and the cobalt content was calculated ...magnification of 100 000 ...
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Delivery of drugs and biomolecules using carbon nanotubes
... cytotoxicity of CNTs The in vitro and in vivo cytotoxicity studies of CNTs mainly concentrate on the effect of metal catalyst impurities, length and type of CNTs, and ...
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AFM imaging of functionalized carbon nanotubes on biological membranes
... structured and show significantly higher ...form of rather flat ...membrane and could be found in the nucleus. Since the transport of biomolecules, such as regulatory proteins, rRNA, or mRNA ...
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Thermal Behavior of Fluorinated Double-Walled Carbon Nanotubes
... holder and the fluorinated sample of DWNTs. The holder surface was not completely covered with substance, and thus, tantalum lines are present in the XPS spectrum of the inves- tigated ...
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Spark plasma sintering of double-walled carbon nanotubes
... increase of the SPS temperature, the more so if a higher uniaxial pressure is ap- ...[7] and the present undamaged DWCNTs could arise from their origin (arc-discharge SWCNTs and CCVD DWCNTs) ...
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High specific surface area carbon nanotubes from catalytic chemical vapor deposition process
... Ž . nantly SWNTs and DWNTs Fig. 4 is calculated to be in the range 900–1000 m 2 rg. This value is in good agreement with the present experimental value Ž 948 m rg showing that a large fraction of the 2 . ...
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Large-Diameter Single-Wall Carbon Nanotubes Formed Alongside Small-Diameter Double-Walled Carbon Nanotubes
... chemistry of the processes involved. The comparison of the Mo ̈ssbauer spectroscopy results with other data (measured carbon content, particle diameter, CNT diameter, number of walls) provides ...
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Alignment and characterization of carbon nanotubes of photolithographically patterned electrodes
... Finally, the information on the diameter distribution and the energy of the electronic transitions of the resonant suspended SWNTs obtained from Raman spectroscopy is [r] ...
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Structure of inorganic nanocrystals confined within carbon nanotubes
... pression of its crystalline structure [40] ...crystals of CuI within SWCNTs [50] and subsequently determined experimentally the influ- ence of the diameter of the host in the resulting ...
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Electronic transport properties of double-wall carbon nanotubes
... states of this charge state. Their pattern provides a complete spectroscopy of the energy levels, and the vertical distance between the lines is a direct measurement of the level ...diamond ...
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Continuous Growth of Vertically Aligned Carbon Nanotubes Forests
... Institute of Technology, MA 02139, USA, ...aligned carbon nanotubes (VACNTs), sometimes called forests or carpets, are a promising material due to their unique physical and scale-dependent ...
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DC and AC Conductivity of Carbon Nanotubes−Polyepoxy Composites
... between carbon nanotubes ...that nanotubes or bundles are separated by a thick polymer barrier as suggested by the low value of the critical exponent t and the relatively low ...
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Raman bands of double-wall carbon nanotubes: comparison with single- and triple-wall carbon nanotubes, and influence of annealing and electron irradiation
... scattering of electrons by structural defects and is often used to assess the quality of ...position of the G mode in graphite, consists of two bands at 1590 cm 1 GC and at ...
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DC and AC Conductivity of Carbon Nanotubes−Polyepoxy Composites
... thirds of the weight ...suspension of nanotubes, and the mixture was again sonicated for 1 ...added and mixed mechanically at 2000 rpm for 15 ...molds and then returned to vacuum ...
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Structure of inorganic nanocrystals confined within carbon nanotubes
... crystals of CuI within SWCNTs [50] and subsequently determined experimentally the influ- ence of the diameter of the host in the resulting structure of CuI en- ...SWCNTs and ...
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Analyzing manufacturing methods of carbon nanotubes for commercialization
... The high energy density within the lasers used in this process vaporize the carbon at the molecular level as opposed to cutting it into graphite particles, and this is a f[r] ...
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