Papers – Page 8 – TechConnect Briefs

Electrocatalysis at a Thin Multi-Wall Carbon Nanotube Film Modified Glassy Carbon Electrode

Fei J., Sun Y., Hu S., Gao Z., Institute of Bioengineering and Nanotechnology, SG

Sensitive and selective ascorbic acid biosensors were developed for the determination of ascorbic acid (AA) based on glassy carbon electrode (GCE) coated with a thin multi-wall carbon nanotube (MWNT) film. The MWNT film showed excellent [...]

Theoretical Studies on Relative Stabilities of C70 Fullerene Dimers

Zhao X., Slanina Z., Goto H., Toyohashi University of Technology, JP

Five stable C70 fullerene dimers with [2+2] bridges between hexagon-hexagon bonds, which are experimentally characterized very recently, have been investigated by several semi-empirical approaches and ab initio Hartree-Fock self-consistent field calculation and hybrid density functional [...]

Electrochemical Storage of Hydrogen in Carbon Nanotubes

Chung S-R, Wang K-W, Perng T.P., National Tsing Hua University, TW

The electrochemical hydrogenation property of carbon nanotubes (CNTs) was investigated. A slurry consisting of CNTs and a binder was pasted on a Ni foam to form an electrode. The discharge capacity was tested in an [...]

Modeling and Simulation of Multi-walled Carbon Nanotubes using Molecular Dynamics Simulation

Wong C.H., Liew K.M., He X.Q., Tan M.J., Meguid S.A., Nanyang Technological University, SG

Molecular dynamics simulation is performed on the buckling behavior of single and multi-walled carbon nanotubes under axial compression. Brenners second generation empirical potential is used to describe the many-body short range interatomic interactions for single-walled [...]

Carbon Nanotube-based Sensor Devices for IC Performance Evaluation

Wright R.G., Kirkland L.V., Zgol M., Adebimpe D., Mulligan R., GMA Industries, Inc., US

A novel approach to the problem of identification of failed integrated circuits (ICs) on electronic circuit boards has been sought that would allow for drastically reducing the costs of the test equipment development and maintenance. [...]

Noncovalent Engineering of Carbon Nanotube Surfaces

Chen J., Ramasubramaniam R., Liu H., Zyvex Corporation, US

Single-walled carbon nanotubes (SWNTs), due to their novel structural, thermal, electrical, mechanical and optical properties, are expected to find applications in many fields. Pristine SWNTs are generally insoluble in common solvents, and difficult to functionalize [...]

Gated Carbon Nanotube Field Emission Enhancement and Regeneration by Hydrogen

Hsu D.S.Y., Shaw J.L., Naval Research Laboratory, US

We have previously demonstrated two different configurations of integrally gated carbon nanotube field emitter arrays (FEAs). CNTs were grown inside microfabricated gate apertures with and without silicon posts. Salient features of these in-situ grown microgated [...]

Sol-Gel Prepared Single Wall Carbon Nanotube SnO2 Thin Film for Micromachined Gas Sensor

Gong J., Chen Q., Univeristy of Central Florida, US

We report here a novel micromachined single wall carbon nanotube (SWNT)/tin dioxide (SnO2) nano film gas sensor. A polymeric sol-gel process in combination with purified SWNT has been successfully developed in fabricating SWNT/SnO2 thin film [...]

Continuous Mass Production of Carbon Nanotubes by 3-Phase AC Plasma Processing

Fabry F., Gruenberger T.M., Gonzalez-Aguilar J., Okuno H., Grivei E., Probst N., Fulcheri L., Flamant G., Charlier J-C, TIMCAL Belgium S.A., BE

Currently known processes for carbon nanotube synthesis use either of the following methods: Arc, laser, solar, plasma or catalytic method. The first group, comprising the first four processes corresponds to the high temperature methods. Hereby, [...]

Lattice Directional Growth of Single Walled Carbon Nanotubes Arrays

Lin H., Harnett C., Tanenbaum D., Cornell University, US

2D arrays of single-walled Carbon Nanotubes (SWNTs) have been grown on Silicon substrates of both Si(100) surface and Si(111) surface by using chemical vapor deposition (CVD). The two-fold growth symmetry on Si(100) and three-fold growth [...]