US – Page 295 – TechConnect Briefs

Pt and Pt-Ru/Carbon Nanotube Nanocomposites Synthesized in Supercritical Fluid as Electrocatalysts for Low-Temperature Fuel Cells

Lin Y., Cui X., Wang J., Yen C.H., Wai C.M., Pacific Northwest National laboratory, US

In recent years, the use of supercritical fluids (SCFs) for the synthesis and processing of nanomaterials has proven to be a rapid, direct, and clean approach to develop nanomaterials and nanocomposites. The application of supercritical [...]

TiN/GaN- Metal/Semiconductor Multilayers for Thermionic Energy Conversion Devices

Rawat V., Sands T.D., Purdue University, US

This work deals with investigation of metal/semiconductor nitrides for potential application as solid state thermionic energy converters. TiN/GaN multilayers were deposited on Sapphire and MgO substrate using reactive pulsed laser deposition. This is the first [...]

Noncovalent Catenation between Metal-Ligand Coordination Macrocycles and _-Cyclodextrin

Liu Y., Lawrence Berkeley National Laboratory, US

Here we describe our findings on the facile preparation of first [2]catenanes from metal-ligand coordination macrocycles and b-CD ring. The [2]catenane formation is illustrated in Figure 1. Coordination between a divalent ligand and Pd(II) spontaneously [...]

Catching Mr. Big with the Small – ‘To Infinitesimal and Beyond”

Eastwood I., Authentix, US

In some parts of the world, the tax revenue from fuels is a big incentive for criminal syndicates to smuggle fuel and launder markers that are used to designate low tax fuels. These activities cost [...]

Fracture of Vacancy-defected Carbon Nanotubes and Their Embedded Composites

Xiao S.P., Hou W.Y., The University of Iowa, US

In this paper, we investigate the effects of vacancy defects on the fracture of carbon nanotubes and carbon nanotube/aluminum composites. Our studies show that even a one-atom vacancy defect can dramatically reduce the failure stresses [...]

Nanotechnology – Disruptive Technologies for Electric Utility Systems. Challenges and Opportunities.

Stringer J., Richman R.H., Izambard, US

Within the next 25 years, the electric power utility system in the U.S. will face a number of serious challenges. These will include issues related to diminishing supplies and increasing costs of fossil fuels, the [...]

Additives containing Nano Metal Oxides for enhanced scratch resistance in Coating Formulations

McMullin R.H., BYK Chemie USA, US

Additives containing Nano Metal Oxides for enhanced scratch resistance in Coating Formulations

Nano-Hetero Structure for direct energy conversion

Popa-Simil L., LAVM, Inc., US

The direct conversion of nuclear energy becomes possible in hetero-nanostructures. To convert the kinetic energy of the fission product into electricity it has to be created a nanostructure formed from a repetitive conductor-insulator structure generically [...]

Measuring Nanoparticle Size Distributions in Real-Time: Key Factors for Accuracy

Erickson K., Singh M., Osmondson B., TSI Incorporated, US

The benefits of sizing aerosolized submicrometer particles using an electrical mobility sizing technique have been well documented. This type of analytical tool has been found to be able to measure particle diameter with an uncertainty [...]

Evaluation of Nanostructured Polymeric Coatings for Corrosion Protection

Aglan A., Ludwick A., Reeves M., Michigan Tech, US

The effect of the addition of multi-walled carbon nanotubes (MWCNT) to epoxy and vinyl chloride/vinyl acetate copolymer coatings on their ability to protect the substrates was studied. Coatings were formulated from these resins with and [...]