nanoparticles – Page 34 – TechConnect Briefs

Overview – Nanoparticulate Dry (Flame) Synthesis & Applications

Flame synthesis is a scalable technology that was developed largely by valiant evolutionary research for manufacture of commodities (e.g. carbon blacks, fumed silica and pigments). In the last 5-10 years, however, major advances in the [...]

Characterization of Aluminum Nitride Nanostructures by XANES and FTIR Spectroscopies with Synchrotron Radiation

Bellucci S., Balasubramanian C., Cinque G., Marcelli A., Cestelli Guidi M., Piccinini M., Popov A., Soldatov A., Onorato P., INFN-Laboratori Nazionali di Frascati, IT

We investigated nano-systems of AlN synthesized by DC arc-plasma-induced melting of aluminum in a nitrogen–argon ambient. Actually, the reaction of molten Al with N2 gas yields on a water-cooled surface a mixture of both nanowires [...]

ZnO Nanoparticles Beaded Multiwalled Carbon Nanotubes

Zhu Y., Elim H.I., Foo Y.L., Triparthy S., Quek W.T., Ji W., Thong J., Sow C.H., National University of Singapore, SG

In this work, we report a hybrid system of ZnO nanoparticles on MWNT scaffolds synthesized via a very simple and straightforward process. This involved the coating of pure Zn on as-grown aligned MWNT films, followed [...]

Converting of Nanoparticles in Industrial Product Formulations: Unfolding the Innovation Potential

Schaer S., Arnosti G., Pilotek S., Tabellion F., Naef H., Buhler AG, CH

Potential users of nanoparticles want the particles in a ready-to-use form. The market currently offers practically only raw materials and standard nanoparticles not tailored to a specific application. A newly developed chemo-mechanical converting process for [...]

Supported Mixed Metal Nanoparticles and PFA-Nafion Nanocomposite Membrane for Low Temperature Fuel Cells

Chan K-Y, Ren J.W., Liu J., Wang H.T., Ding J., Tsang K.Y., Lee T.J., The University of Hong Kong, HK

Performance of low temperature fuel cells depends critically on the nanostructures of the material components in the electrodes and membranes. Some studies are reported here for 1) mixed metal nanoparticles supported on mesoporous carbon and [...]

Computer Simulation of Nanoparticle Sintering

Koparde V.N., Cummings P.T., Vanderbilt University, US

Nanoparticles have been the area of active research in recent years as they have novel and unique properties, which distinguish them from the bulk phase. Given the difficulties associated with experimental analysis at the nanoscale, [...]

Fabrication of Silicon Nanowires Using Atomic Layer Deposition

Gopireddy D., Takoudis C.G., Gamota D., Zhang J., Brazis P.W., University of Illinois at Chicago, US

We will present the synthesis of silicon nanowires using Atomic Layer Deposition (ALD) technique. ALD allows the growth of nanowires in a controlled fashion using the nanoparticles as the seed. The diameter and the length [...]

Fabrication of Complex Diffractive Structures in an Organic-Inorganic Hybrid and Incorporation of Silver Nanoparticles

Scholes F.H., Smith F.L., Furman S.A., CSIRO Manufacturing and Infrastructure Technology, AU

Organic-inorganic hybrids have recently attracted considerable interest. These materials, which are synthesized by the highly versatile sol-gel process, consist of interpenetrating organic and inorganic networks at the nano- to molecular size scale. Incorporating photo-polymerizable groups [...]

Polymer-Controlled Growth of CdSe Nanoparticles into Micro- and Nanowires

Fahmi A.W., Oertel U., Steinert V., Moriarty P., Stamm M., University of Nottingham, UK

This work reports an easy and effective method to prepare CdSe semiconductors nanoparticles stabilised by using amphiphile diblock copolymer polystyrene-block-polyvinylpyridine [PS-b-P4VP] in nonaqueous medium. spin coating on native oxide Si-wafers showed a core-shell structure of [...]

An Innovative Ignition Method using SWCNTs and a Camera Flash

Danczyk S., Chehroudi B., ERC/ Air Force Research Laboratory, US

It was reported in the literature that as-produced single-walled carbon nanotubes (SWCNTs) ignited when accidentally subjected to a common photographic flash at a close range. This effect was observed for dry and “fluffy” SWCNTs but [...]