Papers – Page 57 – TechConnect Briefs

Synthesis and Characterization of Magnetorheological Fluids with Super Paramagnetic Nanomaterials in Polymeric Matrix

Kancharla V., Fahmi A., Liu Q., Gindy N., University of Nottingham, UK

Magneto-rheological (MR) fluids represent an exciting family of smart materials that have the unique ability to undergo rapid (within a few µs) changes in their apparent viscosity on the application of an external magnetic field. [...]

Development of Stab Resistant Body Armor using Fumed SiO2 Nanoparticles Dispersed into Polyethylene Glycol (PEG) through Sonic Cavitation

Mahfuz H., Clements F.E., Stewart J., Florida Atlantic University, US

Traditionally, the development of shear thickening fluid (STF) begins with micron size silica suspended in water. This material is transformed into STF through centrifugation and exchange processes. In other approaches polyethylene glycol (PEG) is added [...]

Functionalized Nanoporous Ceramic Sorbents for Removal of Mercury and Other Contaminants

Mattigod S.V., Fryxell G.E., Skaggs R., Parker K.E., Pacific Northwest National laboratory, US

A new class of high-performance nanoporous sorbents has been developed for heavy metal removal that overcomes the deficiencies of existing technologies. These novel materials are created from a combination of synthetic mesoporous ceramic substrates that [...]

Monometallic nano-catalysts for the reduction of perchlorate in water

Wang D.M., Lin H-Y, Huang C.P., University of Delaware, US

Perchlorate removal in a clean, cost-effective and public-acceptable approach is one of the important issues for current drinking water treatment. Catalytic membrane (CM) was prepared by coating monometallic catalysts of the nano-size onto supports by [...]

Advancements in the Supercritical Water Hydrothermal Synthesis (scWHS) of Metal Oxide Nanoparticles

Lester E., Blood P., Li J., Poliakoff M., University of Nottingham, UK

Supercritical Water Hydrothermal Synthesis (scWHS) is a relatively simple and environmentally friendly process for the production of potentially valuable metal oxide nanoparticles. This paper presents the conclusions of collaborative work between chemical engineers and chemists [...]

Synthesis of Magnetic Nanoparticles Using Spinning Disc Processing

Smith N., Raston C.L., Saunders M., Woodward R., The University of Western Australia, AU

Traditional fluid based synthesis techniques for the production of nano-materials can have limitations in particle morphology and composition selectivity. Particle size distributions can be insufficiently narrow for a deterministic investigation into the factors affecting magnetic [...]

YAG:Ce3+ Nanophosphor Synthesized with Salted Sol-Gel Method

Jia D., Jia W., Shaffer C.V., Weyant J.E., Goonewardene A., Guo X., Guo X.Z., Wang Y., Guo X., Guo X.Z., Li K.K., Zou Y.K., Jia D., Jia W., Boston Applied Technologies, Inc., US

Nanophosphors of Y3Al5O12:Ce3+ (YAG:Ce) were synthesized with a salted sol-gel (SSG) method, in which water-Heptane solutions of certain inorganic salts were used along with traditional metal alkoxides precursors. YAG phase could be formed at a [...]

The role of the synthetic procedure on the photoactivity of nanocrystalline TiO2

Ardizzone S., Bianchi C.L., Cappelletti G., Pirola C., Ragaini V., University of Milan, IT

The nanometer scale of the TiO2 plays a key role in affecting the photocatalytic performance of the material. In recent years a great deal of activity was dedicated, by the authors, to the study of [...]

Nanoparticles in chemistry and their industrial applications

Maestro P., Bomal Y., Chopin T., RHODIA RECHERCHES ET TECHNOLOGIES, FR

Micro- and nanotechnologies are at the centre of numerous investigations and huge investments, essentially in the areas of information technologies and health care . The technologies utilised mainly take advantage of microelectronics and/or rather sophisticated [...]

Cubic and oriented Ag nano-particles by high vacuum evaporation

Berner D., Zuppiroli L., Caumont M., Bacsa W.S., University Paul Sabatier, FR

Optical properties of metal nanoparticles depend strongly on size and shape. Controlling these parameters implies improving the control of their optical properties. Metal nanoparticles find applications in photonics, biological labeling and catalysis. A number of [...]