MX – Page 11 – TechConnect Briefs

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 [...]

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 [...]

Structure of Ni nanoparticles/TiO2 films prepared by sol-gel dip-coating

García-Murillo A., Ramírez-Meneses E., Ramírez-Salgado J., Sandoval-Robles B.G., Montiel-Palma V., Dorantes-Rosales H., Del Angel-Vicente P., Cicata - IPN Unidad Altamira, MX

Titania thin films were synthesized by sol-gel dip-coating method with metallic Ni nanoparticles from an organometallic precursor. Titania matrix and Ni nanoparticles were prepared separately. Titania precursor solution was prepared mixing titanium isopropoxide in isopropanol [...]

Free- standing SnO2 nanoparticles synthesized by hydrothermal route

Fernández-Osorio A., Vázquez-Olmos A., Sato-Berru R., Casas-Gutiérrez D., Universidad Nacional Autonoma de Mexico, MX

Tin oxide with rutile-type crystalline structure is a n-type wide band gap (3.5 eV) semiconductor that presents a proper combination of chemical, electronic and optical properties that make it advantageous in several applications. Due to [...]

Silver nanoparticles synthesized on titanium dioxide fine particles

Niño-Martínez N., Martínez-Castañón G.A., González-Hernadez J., Ruiz F., Universidad Autonoma de San Luis Potosi, MX

Silver nanoparticles with a narrow size distribution (20 nm mean size) were synthesized over the surface of two different commercial TiO2 particles using a simple aqueous reduction method. The reducing agent used was NaBH4; different [...]

Quantum Gates Simulator Based on DSP TI6711

Iuga C., Duchen G.I., Campero A., Universidad Autónoma Metropolitana, MX

Quantum theory has found a new field of application in the information and computation fields during recent years. We developed a Quantum Gate Simulator based on the Digital Signal Processor (DSP) DSP TI6711 using the [...]

Characterization of Activated Carbon particles for nanocomposite synthesis

Terrazas-Bandala L.P., Zaragoza-Contreras E.A., González-Sánchez G., Ballinas-Casarrubias M.L., Advanced Materials Research Center (CIMAV), MX

Activated carbon from inexpensive sources has been of great interest for separation systems, efforts had been made to produce AC nanoparticles by different means, in the aim to integrate them to composite materials to enhance [...]

Energy balance development in a cogeneration with biogas for H2 production by catalytic reforming

Hernández Rosales I.P., Fernández Madrigal A., García Serrano L., UNAM, MX

The main object of this research was carry out technically a mass and energy balances in an energy cogeneration plant with cattle excrement gas a fuel composed by biogas + natural gas. This fuel was [...]

Theoretical Study of the Reaction between OH Radicals and Formaldehyde adsorbed on Small Silica Clusters

Iuga C., Vivier-Bunge A., Universidad Autónoma Metropolitana, MX

Heterogeneous reactions of atmospheric gases on aerosol particles may play an important role in atmospheric chemistry. However, the kinetics and mechanisms of adsorption and reaction of atmospheric gases on aerosol surfaces are not well understood. [...]

MOS Structures Containing Amorphous Silicon Nanoparticles for Application in Memory Devices

Nedev N., Stoytcheva M., Nesheva D., Manolov E., Brüggemann R., Levi Z., Zlatev R., Valdez B., Alvarez L., Universidad Autónoma de Baja California, MX

Metal-Oxide-Silicon structures containing a layer with amorphous silicon nanoparticles in a silicon oxide matrix are fabricated by sequential physical vapour deposition of SiOx (x=1.15) and RF sputtering of SiO2 on n-type crystalline silicon, followed by [...]