Carbon nanotubes graphitized

Abstract High-pressure hydrogenation of the single-walled carbon nanotubes, graphite nanofibers and fullerenes C60 was developed. Produced samples have been studied by their combustion, gas thermodesorption, mass-spectroscopy, X-ray, IR and Raman scattering spectroscopes. 

Instead of carbon nanotubes, graphitic carbonized PPV nanotubes prepared in an alumina membrane have been used. Further, nanotubes embedded with gold nanoparticles were used for the fabrication of field emitting devices. " ... 

Instead of carbon nanotubes, graphitic carbonized PPV nanotubes prepared in an alumina membrane... 

Cai D, Song M, Xu C (2008) Highly conductive carbon-nanotube/graphite-oxide hybrid films. Adv Mater 20 1706-1709... 

Antar, Z., Feller, J.F., Noel, H., Glouannec, P., EUeuch, K., 2012. Thermoelectric behaviour of melt processed carbon nanotube/graphite/poly(lactic acid) conductive biopolymer nanocomposites (CPC). Materials Letters 67, 210—214. 

Keywords Solar collectors. Thermal conductivity, hemispherical emissivity, hemispherical absorptivity. Carbon nanotubes. Graphite, bio-polymers... 

S.Y Wang, X.S. Zhao, T. Cochell and A. Manthiram, Nitrogen-doped carbon nanotube/graphite felts as advanced electrode materials for vanadium redox flow batteries,. Phys. Chem. Lett. 3,2012,2164-2167. 

Part II of this book deals with the most recent developments of polymer nanocomposites with other nanoadditives such as carbon nanotubes, graphite, nanoparticles and other inorganic-organic hybrid systems and has eight... 

There are many applications for diamonds and related materials, e.g., diamondlike carbon films, and there are potential applications for Fullerenes and carbon nanotubes that have not yet been realised. However, the great majority of engineering carbons, including most of those described in this book, have graphitic microstructures or disordered graphitic microstructures. Also, most engineering carbon materials are derived firom organic precursors by heat-treatment in inert atmospheres (carbonisation). A selection of technically-... 

Because of the speeial atomie arrangement of the earbon atoms in a carbon nanotube, substitutional impurities are inhibited by the small size of the carbon atoms. Furthermore, the serew axis disloeation, the most eommon defeet found in bulk graphite, is inhibited by the monolayer strueture of the Cfj() nanotube. For these reasons, we expeet relatively few substitutional or struetural impurities in single-wall earbon nanotubes. Multi-wall carbon nanotubes frequently show bamboo-like defects associated with the termination of inner shells, and pentagon-heptagon (5 - 7) defects are also found frequently [7]. 

Chapter 1 contains a review of carbon materials, and emphasizes the stmeture and chemical bonding in the various forms of carbon, including the foui" allotropes diamond, graphite, carbynes, and the fullerenes. In addition, amorphous carbon and diamond fihns, carbon nanoparticles, and engineered carbons are discussed. The most recently discovered allotrope of carbon, i.e., the fullerenes, along with carbon nanotubes, are more fully discussed in Chapter 2, where their structure-property relations are reviewed in the context of advanced technologies for carbon based materials. The synthesis, structure, and properties of the fullerenes and... 

Key Words—Carbon nanotubes, vapor-grown carbon fibers, high-resolution transmission electron microscope, graphite structure, nanotube growth mechanism, toroidal network. 

We will now discuss the electronic structure of single-shell carbon nanotubes in a progression of more sophisticated models. We shall begin with perhaps the simplest model for the electronic structure of the nanotubes a Hiickel model for a single graphite sheet with periodic boundary conditions analogous to those im-... 

From the observation of the early stage of nanotube production by the catalytic decomposition of acetylene, it is concluded that steric hindrance arising from the surrounding nanotubes, graphite, amorphous carbon, catalyst support and catalyst particle itself could force bending of the growing tubules. 

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