Pyrolytic carbon nanotubes from vapor-grown carbon fibers

Geometrical and electronic structures of the (5, 3) single-walled gold nanotube from first-principles calculations

“…Under the uniaxial strain, the energy bands near the Fermi level move toward the higher energy area, and the torsional strain eliminate the double-degeneracy of the energy band near the Fermi level. The different changes of the energy bands under the two kinds of the strains make inevitably the shift of the DOS peaks different, which is consistent with the above results of SWGT (5,3). It is found that the SWGT (6, 3) has the same five conduction channels as (5, 3) and (5, 0) tubes indicating clearly no direct correlation between the numbers of the atom rows and the conduction channels.…”

“…For example, the unique electronic and mechanical properties of carbon nanotube (CNT) [1][2][3][4] are proved to be a rich source of new fundamental physics and also a promising candidate of nanoscale wires, transistors and sensors. So, the cylindrical tubes and nanowires made of other materials are also the subject of intense researches.…”

“…In addition to the SWGT (5, 3), we also study the electronic properties of the deformed SWGT (5, 0) (helical angle is 30˚) and SWGT (6, 3) (helical angle is 0˚) under the similar uniaxial stretch of 0.1 and torsional strains (+4.715˚for (5, 0) and +6.587˚for (6,3)). The band structures of (5, 0) and (6,3) are shown in Fig.…”

“…In summary, we have systematically studied the structural and electronic properties of the perfect and deformed SWGT (5,3), under three kinds of strains, i.e. the uniaxial stretch, torsional and shear strains.…”

Synthesis and Characterization of Carbon Nanofibers Produced by the Floating Catalyst Method

“…[6][7][8][9] There are many methods of producing these nanomaterials, including electric arc discharge, [2][3][4][5]10 laser evaporation, 11 chemical vapor deposition (CVD), [6][7][8][9][12][13][14][15] and plasma-enhanced CVD, 16,17 among many others. Among these, the CVD method seems to be the potential candidate for a commercial-scale process.…”