Papers – Page 65 – TechConnect Briefs

Shape-Controlled Synthesis and Catalytic Behavior of Supported Platinum Nanoparticles

Liu C., Fransson M., Zhou B., Headwaters Technology Innovation LLC, US

Shape-Controlled Synthesis and Catalytic Behavior of Supported Platinum Nanoparticles Selective hydrogenation reaction is influenced by many factors, which include the presence of catalytic activators or poisons, the temperature, pressure, solvent agitation and other conditions specific [...]

Comparative Study Of Effect Of Various Reducing Agents On Size And Shapes Of Gold Nanoparticles

Kumar A., Dhawan N., Stanford University, US

Nanoparticles have attracted considerable interest because of their unique optical, electromagnetic and catalytic properties that differ from bulk ones. The origin of these properties is their large surface to volume ratio and from the coherent [...]

Biologically synthesised Silver nanoparticles using a Bacterial Culture Isolated from the riverine bank of Ganges in India

Ahmad N., Sharma S., Ghosh A.K., Reader, IN

Nanotechnology is a highly energized discipline of science and technology. One of the major challenges of nanotechnology is the synthesis of nanomaterials with a wide range of chemical compositions and sizes. Nanobiotechnology is a promising [...]

Synthesis and Characterization of Nanocrystalline Eu3+-doped Gd2O3

Jáuregui-Rosas S., Tomar M., Jia W., Vásquez O., Fachini E., University of Puerto Rico, Mayaguez Campus, PR

Nanocrystalline Gd2-xEuxO3 phosphors by a simple sol-gel method have been synthesized. The effects of the annealing temperature and atomic fraction of Eu3+ ions (x) on the structural and luminescence properties of the mixed oxides have [...]

Magnetic Properties Of Iron-Filled Multiwalled Carbon Nanotubes

Aguiló-Aguayo N., García-Céspedes J., Pascual E., Bertran E., IN2UB, Universitat de Barcelona, ES

Magnetic properties of iron-filled multiwalled carbon nanotubes have been investigated. Hysteretic and temperature dependent magnetic responses reveal a superparamagnetic behaviour at temperatures below 150ºC. The saturation magnetization of the nanowires at 5K is found to [...]

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, [...]