MX – Page 9 – TechConnect Briefs

Effect of surfactant on TiO2/UV mediated heterogeneous photocatalytic degradation of DDT in contaminated water

Sinha S., Tapia-Orozco N.G., Acosta-Ramírez D.S., Rodríguez-Vázquez R., CINVESTAV, MX

The toxic effects from the use of pesticides are of great concern to the environment. The pesticides containers are not treated according to the Mexican normativity and hence increase the pollutant levels in the environment, [...]

Fracture of a 08KP Steel in Nano-Fragmented State

Yermishkin V.A., Tamayo M.P., Muñoz Aguirre N., Instituto Politecnico Nacional, MX

The evaluation of the resistance to the fracture toughness of metals and metal composites that work in the plastic regime require of the using of highly complex experimental methods and analysis which are not at [...]

Preparation of Y3Al5O12:Eu3+ waveguide films by sol-gel method

García Hernández M., García-Murillo A., de J. Carrillo Romo F., Torres Orozco C., García Hernández M., García-Murillo A., Ramírez-Meneses E., Cicata - IPN Unidad Altamira, MX

In this work, Y3Al5O12:Eu3+ (5 mol% Eu3+) optical thick films were obtained by sol-gel process. The films were dip-coated by dip-coating technique. The synthesis was accomplished using metal organic precursors, such as Al(tri-sec-butoxide) Al(OC4H9)3, yttrium [...]

Improving the structural characterization of supported on glass gold nanoparticles using Atomic Force Microscopy at vacuum

Muñoz Aguirre N., Rivera López J.E., Martínez Pérez L., Tamayo Meza P., Instituto Politecnico Nacional, MX

Surface characteristics of gold nanoparticles [1] at ambient conditions and in vacuum of the order of 10-4 Torr are compared using Atomic Force Microscopy topographic images in tapping mode. Figure 1 shows the improvement of [...]

Dispersed stabilized Pt nanoparticles synthesized from an organometallic precursor

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

In electrocatalysis, carbon materials have been generally employed to support metallic nanoparticles for electrochemical applications. Many methods to prepare CNTs supported metal nanoparticles including electrochemical, microwave irradiation and wet chemical methods have been reported in [...]

Obtaining and Characterization of Tin Powders by Reactive Milling in Air

Lara A.E.O., Lara J.O., Lara A.E.O., Lara J.O., Ramírez H.B., ESIQIE-IPN, MX

TiN powder was obtained by reactive milling of a titanium powder in air. The Ti powder was milled in an attrition mill. Characterization of the powders was carried out by means of X-ray diffraction (XRD), [...]

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 [...]

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 [...]

Social-Interest Green House Design based in Rapid Product Realization Methodology – Case Study Solar Green House ITESM

Valerio A.A., Molina A., Cambero C.A., Zarate A., Instituto Tecnológico y de Estudios Superiores de Monterrey (ITESM) campus Monterrey, MX

In this paper we share our experiences in the methodological design of a solar house focused in the Social-Interest Market. The methodology exposed here, was developed by the ITESM campus Monterrey, and is a particularization [...]

Von Neumann Entropies Analysis of Nanostructures: PAMAM Dendrimers of Growing Generation

Esquivel R.O., Flores-Gallegos N., Carrera E., Universidad Autonoma Metropoiltana, MX

Quantum Information Theory is a new field with potential implications for the conceptual foundations of Quantum Mechanics through density matrices. In particular, information entropies in Hilbert space representation are highly advantageous in contrast with the [...]