MX – Page 10 – TechConnect Briefs

OH Radical Oxidation of Ethylene Adsorbed on Graphene: A Quantum Chemistry Study

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

The functionalization of carbon based nanomaterials could have applications in atmospheric chemistry and contaminants removal. In this work, a quantum chemistry and computational kinetics study has been performed on the OH radical addition to ethylene [...]

Quantum Fourier Transform Circuit Simulator

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

Quantum Fourier transform is of primary importance in many quantum algorithms. This paper presents the development of a Quantum Fourier Transform Circuit Simulator system that processes classical analog signals and presents the results of the [...]

Study of the ferroelectric properties for PVDF using DFT Theory

Ortíz E., Cuán A., Badillo C., Wang Q., Noreña L., Universidad Autonoma Metropolitana-Azcapotzalco, MX

Polyvinylidene fluoride (PVDF) exhibits piezoelectricity effect. In this work, it is presented a theoretical study of some properties of this material which were calculated by Density Functional Theory (DFT). Among those properties are: polarizability, dipolar [...]

Reactive block copolymers as versatile compatibilizers for polymer-clay nanocomposites

Flores-Santos L., González-Montiel A., Baeza-Alvarado M.D., Espinoza-Rodríguez E., Esparza-Hernández P., CID, Centro de Investigación y Desarrollo Tecnológico, S.A. de C.V., MX

It’s well known that silicate-polymer nanocomposites offer a number of significant advantages over traditional silicate-polymer composites, such as increased tensile strength, improved heat deflection temperature and flame retardance, with typically 3-5 wt.% of the nanofiller, [...]

Electrospun Nanofibrous Membrane Biosensor for lactate

Romero J., Moreno I., González V., Centro deInvestigación en Química Aplicada, MX

Electrospinning is a simple, non mechanical method used to produce non-woven fabrics of ultrafine fibers in the nanometer diameter range (nanofibers).This method is appropriated to obtain high-surface-area polymeric fibrous membranes and is a one-step process [...]

Disinfection of Cryptosporidium Parvum Oocysts in Water using Ultrasonic Treatment

Olvera M.E., Ilangovan K., Instituto Tecnologico y de Estudios Superiores de Monterrey, MX

Ultrasound in a liquid phase cause mass and heat transfer across the liquid through cavitational processes which act as nanoreactors to generate unstable mechanical equilibrium. The effect of 1 MHz ultrasound on the inactivation of [...]

Nanostructured films of novel azocompounds

Valdez-Hernandez Y.A., Rivera E., Carreon-Castro M.P., UNAM-Instituto de Ciencias Nucleares, MX

Thin nanostructured films by Langmuir and Langmuir-Blodgett technique of novel azocompounds are reported. Brewster’s angle microscopy (BAM), UV-Visible absorption and atomic force microscopy (AFM) were obtained to determine the stability and quality of the films. [...]

Nanostructure LB films of novel OPV compounds

Jimenez-Nava B., Alvarez-Venicio V., Carreon-Castro M.P., Nuclear Science Institute, MX

We studied the formation of Langmuir monolayers of two series of amphiphilic monodendrons -conjugated from first to third generation number with different length of terminal chains C3H7 and C12H25, the characterization of the monolayer was [...]

Deposition and Characterization of Platinum Nanoparticles on Highly Orientated Pyrolytic Graphite

Elizondo-Villarreal N., Novar C., Zhou J.P., Alvarez Contreras L., Tel Vered R., Universidad Autonoma de Nuevo Leon, MX

Platinum is considered one of the best electrocatalyst for low temperature reactions in a H2/O2 fuel cell. Metallic nanoparticles are of great interest because of the modification of properties observed due to size effects, modifying [...]

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 [...]