Advanced Materials & Manufacturing – Page 593

Carbon Nanotube- and Nanofibre-reinforced Polymer Fibres

Shaffer M.S.P., Sandler J.K.W., Pegel S., Windle A.H., Gojny F., Schulte K., Cadek M., Blau W.J., Lohmar J., van Es M., Imperial College, UK

A range of multi-wall carbon nanotubes and carbon nanofibres were mixed with a polyamide-12 matrix using a twin-screw microextruder, and the resulting blends used to produce a series of reinforced polymer fibres. The aim was [...]

Characterization of a Novel Self-Association of an Alternating Copolymer into Nanotubes in Solution

Malardier-Jugroot C., van de Ven T.G.M., Whitehead M.A., McGill University, CA

The characterisation of the association of an alternating copolymer was performed using theoretical methods (quantum mechanics and molecular mechanics) and experimental methods (cryo-Transmission Electron Microscopy, Neutron Reflectivity and Neutron Scattering). The most stable conformation obtained [...]

Nanostructure of a High-Permeability, Hydrogen-Selective Inorganic Membrane

Oyama S.T., Lee D., Hacarlioglu P., Gu Y., Saraf R.F., Virginia Tech, US

This paper describes the preparation and properties of an inorganic membrane with permeability for H2 comparable to palladium and with over 99.9% selectivity over larger species like CO, CO2 and CH4. The membrane is a [...]

Synthesis and Characterization of Novel High-Temperature Stable Nanocomposite Catalysts

Kirchhoff M., Specht U., Veser G., University of Pittsburgh, US

Unusually active and sinter-resistant nanocomposite materials were synthesized by combining the high reactivity of nanosized noble metal particles with the excellent hightemperature stability of hexa-aluminates through a simple one-step microemulsion-templated sol-gel synthesis. The novel nanocomposite [...]

Nano Composites

Nanotube Stochastic Resonance: Noise–enhanced Detection of Subthreshold Signals

Lee I.Y., Liu X., Kosko B., Zhou C., University of Southern California, US

Noise can help signal detection at the nano-level. Experiments on a single-walled carbon nanotube transistor confirm that a threshold is sufficient for a nondynamical system to exhibit stochastic resonance: a judicious amount of noise can [...]

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 [...]