Papers – Page 634 – TechConnect Briefs

Synthesis and electrochemical characterization of sponge-like nickel nanoparticles

Ramírez-Meneses E., Domiguez-Crespo M.A., Dorantes-Rosales H., Torres-Huerta A.M., Montiel-Palma V., Hernández-Tapia G., Cicata - IPN Unidad Altamira, MX

Nickel exhibits a high initial electrocatalytic activity toward the HER. Enhancement of cathodic activity of nickel for electrolytic hydrogen evolution has been carried out by the formation of nanostructured nickel materials. In this respect, the [...]

Comparative thermodynamic study of functionalized homogeneous and multilayer latex particles

Corea M., del Río J.M., Instituo Politécnico Nacional, MX

In this work, two series of polymeric particles of poly(butyl acrylate-co-methyl methacrylate), P(BuA-MMA) functionalized with acrylic acid (AA) were synthesized by means of emulsion polymerization techniques. In both cases, the total carboxylic concentration was varied [...]

Rheological Characterization of Melt Compounded Polypropylene/clay nanocomposites

Abdel-Goad M., Kretzschmar B., Pötschke P., Al-maameri R., Heinrich G., Sultan Qaboos University, OM

Polypropylene/clay nanocomposites were prepared by using a two step melt compounding process on twin screw extruders. In order to enhance the exfoliation, time and degree of mixing were varied using different screw speeds and dosing [...]

Replication of nano dimple structures by injection molding with rapid thermal control system

Rha M., Park J.M., Kwon T.H., Pohang University of Science and Technology, KR

The present study proposes an efficient and easy mass production method for nano dimple structures by injection molding. Anodic aluminum oxide (AAO) technique is utilized to make a master with nano dimple structures, and then [...]

The Effect of Inclusion of Nanoparticles on the Rheological and Morphological Properties of Triblock Copolymer Gels

Paglicawan M.A., Kim J.K., Industrial Technology Development Institute, PH

Numerous studies reported over the past decade have sought to establish fundamental relationships between morphology and property development in triblock copolymer gels as explicit functions of copolymer molecular weight, copolymer concentration, solution concentration, solvent quality, [...]

The Effect of Oxygen Beam (O+7,100 MeV) and Gamma Irradiation On Polypyrrole Thin Film

Chandra S., Sonkawade R.G., Kulriya P.K., Singh F., Avasthi D.K., Annapoorni S., Rana J.M.S., Ramola R.C., H N B GARHWAL University, IN

Polypyrrole thin films were prepared by electrochemical process and then these films were irradiated by Swift Heavy Ions and by gamma rays. The structural and optical properties of the Polypyrrole thin films were characterized by [...]

Thermal and Optical investigation of Y2O3 nanocrystalline phosphors

Tatar D., Kaygusuz H., Tezcan F., Erim B., Ovecoglu M.L., Ozen G., Istanbul Technical University, TR

The chemical decomposition technique was used to sythesize Y2O3 nanophospors. This technique (to our knowledge, a new technique used to synthesize Y2O3 nanocrystalline phosphors) is based on the thermal decomposition of Yttrium alginate gels. The [...]

Synthesis and Characterization of Nanocrystalline Tin Powder by Reactive Milling

Lara J.O., Ramírez H.B., Instituto Politecnico Nacional, MX

TiN powder was obtained by reaction milling of a titanium powder in air. The Ti powder was milled in an attrition mill or a Spex mill. Characterization of the powders was carried out by means [...]

Synthesis and characterization of Dy2O3 nano crystalline power by using a combustion Urea process

Vijayakumar M., Nallamuthu N., Venkateswarlu M., Satyanarayana N., Research Scholar, IN

As the functional materials, rare-earth (RE) oxides have been widely used in various fields in the past two decades, such as high-performance luminescent devices, magnets, catalysts, batteries, sensors, etc. Among the rare-earth (RE) oxides, Dy2O3 [...]

Influence of nano size on various properties of Sn1-xCoxO2 nanocrystalline Diluted Magnetic Semiconductors

Srinivas K., Venugopal Reddy P., Osmania University, IN

With a view to understand the influence of nano size on various structural, electronic and magnetic properties of nanostructured Sn1-xCoxO2, systematic investigations have been carried out. After synthesizing the samples by sol-gel route, structural characterization [...]