Papers – Page 74 – TechConnect Briefs

Direct growth of carbon nanotubes on a plastic substrate

Carnahan D., Esposito D., Izrailit I., Vasenkov A.V., CFD Resarch Corporation, US

The deficiency of carbon nanotube (CNT) growth on temperature-sensitive substrates such as plastic tapes impedes the further progress in CNT electronics. We report a novel method that is able to offer the solution by selectively [...]

Catalyst-Free Synthesis of Carbon Nanotubes with Low-Intensity Lasers

Krishna V., Koopman B., Moudgil B., University of Florida, US

We have discovered a novel method of synthesizing carbon nanostructures such as single-wall carbon nanotubes (SWNTs), multi-wall carbon nanotubes (MWNTs) and carbon onions. The advantages of our method include, catalyst-free synthesis of CNTs at room [...]

Controlled Dispersion of Carbon Nanotubes Wrapped in Amphiphilic Block Copolymers: Elaboration of Polymer Nanocomposite

Semaan C., Pecastaings G., Schappacher M., Soum A., Laboratoire de Chimie des Polymères Organiques LCPO, FR

The scope of carbon nanotubes (CNT) applications in practical devices has been hampered by poor dispersion and weak interfacial bonding with polymer matrices. Therefore, effective method for CNT dispersion is required for industrial applications. We [...]

Effect of Position and Orientation of Stone-Wales Defects on the Fracture Behavior of a Zigzag Single-Walled Carbon Nanotube

Talukdar K., Mitra A.K., NIT Durgapur India, IN

A (10, 0) SWCNT of length 42.59 Å and aspect ratio 10.9 is studied by Molecular Dynamics (MD) simulation both in perfect condition and also with one, two, three or four SW defects introduced into [...]

Spin Dependent Transport in Carbon Nanostructures

Harrison N.M., Montanari B., Imperial College London, UK

A theoretical investigation of the electronic and magnetic structure in carbon nanoribbons, defective graphene and carbon peapod structures. The critical importance of electron correlation in the emergent behaviour will be demonstrated for; the generation of [...]

Influence of Silica Precursor in the Cobalt Incorporation in Mesoporous Silica MCM-41 Used for the Synthesis of Single Walled Carbon Nanotubes

Ramírez F.C., López B.L., Giraldo L.F., Universidad de Antioquia, CO

In this work several silica precursors have been used for the MCM-41 mesoporous silica synthesis, i.e. Cab-O-sil, sodium silicate and TEOS with incorporation of cobalt in-situ during the synthesis of the molecular sieves. The materials [...]

Characterizing the Oxygen Reduction Reaction for the Proton Exchange Fuel Cell with with Novel Nanotechnology-based Catalyst Supports

Groves M.N., Chan A.S.W., Malardier-Jugroot C., Jugroot M., Malardier-Jugroot C., Royal Military College of Canada, CA

The oxygen reduction reaction (ORR) on the cathode of the proton exchange membrane fuel cell is still inefficient. This work will focus on the activity of the catalyst when varying the catalyst support. In the [...]

Large area, directionally aligned single-walled carbon nanotube thin film by self-assembly and compressed sliding methods

Najeeb C.K., Lee J-H., Chang J., Kim J.H., Ajou University, KR

To fabricate large area directional arrangement of SWNTs, we employed two different methods such as self assembly of surface modified SWNTs by drop casting or spin coating and by compressed sliding of SWNT dispersion between [...]

Incorporation of plasma modified multi-walled carbon nanotubes into TiO2 photoanode for dye-sensitized solar cells (DSSC)

Chan Y.F., National Cheng Kung University, TW

Dye-sensitized solar cells (DSSC) are fabricated using photoanode comprises of nanocomposite material of TiO2 and multi-walled carbon nanotubes (MWNT) treated in situ by plasma and subsequent functionalization by grafting of maleic anhydride (MA). The carboxyl [...]

RNA Functionalized Carbon Nanotube for Chemical Sensing

Chen M., Datta S.A., Khamis S.M., Fischer J.E., Johnson Jr. A.T., Simmons College, US

We demonstrate a versatile class of nanoscaled chemical sensors based on single stranded RNAs as the chemical recognition sites and single-walled carbon nanotube field effect transistors (SWNT-FETs) as the electronic readout components. Motivated by our [...]