Results 61 to 70 of about 290,930 (185)

Short Time Synthesis of Titania Nanotubes: Effect of Pre-Mixing Prior Hydrothermal

Indonesian Journal of Chemistry, 2019
The effect of pre-mixing by mechanical stirring before hydrothermal and hydrothermal time on the crystalline phases and morphology of titania has been studied. It was shown that nanotubes titania can be obtained after 5 h hydrothermal at 150 °C.
Indriana Kartini, Ira Nur Arba’atul Jannah, Fitri Rizki Amalia, Salim Mustofa, Eko Sri Kunarti, Respati Tri Swasono   +5 more
doaj   +1 more source

Transport in coupled graphene-nanotube quantum devices

, 2012
We report on the fabrication and characterization of all-carbon hybrid quantum devices based on graphene and single-walled carbon nanotubes. We discuss both, carbon nanotube quantum dot devices with graphene charge detectors and nanotube quantum dots ...
Dauber, J., Engels, S., Meyer, C., Stampfer, C., Terrés, B., Trellenkamp, S., Volk, C., Weber, P., Wichmann, U.   +8 more
core   +1 more source

Hydrogen Evolution on Hydrophobic Aligned Carbon Nanotube Arrays [PDF]

, 2009
We investigate for the first time hydrophobic carbon nanotube-based electrochemical cells as an alternative solution to hydrogen sorting. We show that the electrically conducting surface of the nanotube arrays can be used as a cathode for hydrogen ...
Daraio, Chiara, Giri, Jyotsnendu, Misra, Abha   +2 more
core   +1 more source

Carbon Nanotube Actuators

Science, 1999
Electromechanical actuators based on sheets of single-walled carbon nanotubes were shown to generate higher stresses than natural muscle and higher strains than high-modulus ferroelectrics. Like natural muscles, the macroscopic actuators are assemblies of billions of individual nanoscale actuators.
R. H. BAUGHMAN, CHANGXING CUI, A. A. ZAKHIDOV, Z. IQBAL, J. N. BARISCI, G. M. SPINKS, G. G. WALLACE, MAZZOLDI, ALBERTO, DE ROSSI, DANILO EMILIO, A. G. RINZLER, O. JASCHINSKI, S. ROTH, M. KERTESZ   +12 more
openaire   +7 more sources

Theory of superconductivity of carbon nanotubes and graphene

, 2006
We present a new mechanism of carbon nanotube superconductivity that originates from edge states which are specific to graphene. Using on-site and boundary deformation potentials which do not cause bulk superconductivity, we obtain an appreciable ...
Bachtold A., Barnett R., Connétable D., Dubay O., Eliashberg G. M., Fujita M., Fujita M., Haruyama J., Jiang J., Kamide K., Kasumov A. Y., Kevan S. D., Kobayashi Y., Kulik I. O., Nakada K., Nambu Y., Niimi Y., Porezag D., Saito R., Sasaki K., Sasaki K., Sasaki K., Sugawara K., Suzuura H., Takesue I., Tang Z. K., Wakabayashi K.   +26 more
core   +1 more source

High-frequency nanotube mechanical resonators [PDF]

, 2012
We report on a simple method to fabricate high-frequency nanotube mechanical resonators reproducibly. We measure resonance frequencies as high as 4.2 GHz for the fundamental eigenmode and 11 GHz for higher order eigenmodes.
Bachtold, A., Chaste, J., Moser, J., Sledzinska, M., Zdrojek, M.   +4 more
core   +3 more sources

Anisotropic Decay Dynamics of Photoexcited Aligned Carbon Nanotube Bundles

, 2006
We have performed polarization-dependent ultrafast pump-probe spectroscopy of a film of aligned single-walled carbon nanotube bundles. By taking into account imperfect nanotube alignment as well as anisotropic absorption cross sections, we quantitatively
J. Kono, J. S. Lauret, R. G. Larson, S. Maruyama, U. Kreibig, Y. Hashimoto, Y. Murakami   +6 more
core   +1 more source

Bromophenyl functionalization of carbon nanotubes : an ab initio study [PDF]

, 2012
We study the thermodynamics of bromophenyl functionalization of carbon nanotubes with respect to diameter and metallic/insulating character using density-functional theory (DFT).
Beaudin, Jason, Côté, Michel, Haynes, Peter D., Hine, Nicholas D. M., Janssen, Jonathan Laflamme   +4 more
core   +2 more sources

Local pressure-induced metallization of a semiconducting carbon nanotube in a crossed junction

, 2005
The electronic and vibrational density of states of a semiconducting carbon nanotube in a crossed junction was investigated by elastic and inelastic scanning tunneling spectroscopy.
Burghard, M., Kern, K., Schneider, M. A., Vitali, L., Wahl, P.   +4 more
core   +2 more sources

Electron injection in a nanotube with leads: finite frequency noise-correlations and anomalous charges

, 2004
The non-equilibrium transport properties of a carbon nanotube which is connected to Fermi liquid leads, where electrons are injected in the bulk, are computed.
Adeline Crépieux, Andrei V. Lebedev, I. Safi, I. Safi, L. D. Landau, M. Büttiker, M. Büttiker, M. Henny, M. P. A. Fisher, R. Egger, R. Egger, R. Saito, T. Martin, Thierry Martin, U. Gavish, W. Oliver   +15 more
core   +3 more sources