MX – Page 12 – TechConnect Briefs

Enantiospecific adsorption of chiral molecules on chiral Au nanoparticles

Garzon I.L., Lopez-Lozano X., Perez L.A., Universidad Nacional Autonoma de Mexico, MX

Enantioselectivity in gold clusters is investigated by studying the adsorption of a chiral amino acid (cysteine) on a chiral Au55 cluster using density functional calculations. The highest adsorption energies were found when the amino and [...]

Synthesis and Characterization of Metallic Nanoparticles of Cu, Co and Cu-Co by Reactive Milling

Angeles-Islas J., Velasquez-Rodriguez C.G., Calderon H.A., ESFM-IPN, MX

The production of metallic nanoparticles by means of a mechanochemical process is reported. High energy mills are used. The reaction between powders and activated by ball milling involves metallic chlorides and Na in a protective [...]

Structural Analysis of Platinum Paladium Nanoparticles Supported on amorphous Silica by High Resolution Electron Microscopy

Castillo N., Diaz Barriga L., Pérez R., UNAM, MX

Bimetallic nanoparticles structures and properties are distinct from those of pure elemental clusters. Particularly nanoalloy clusters finely dispersed onto high surface area supports, play an important role in heterogeneous catalysis because the performance of a [...]

Structural Analysis of Ptx-Pd1-x Nanoparticles Supported on amorphous Silica by High Resolution Electron Microscopy

Castillo N., Diaz Barriga L., Pérez R., UNAM, MX

Bimetallic nanoparticles structures and properties are distinct from those of pure elemental clusters. Particularly nanoalloy clusters finely dispersed onto high surface area supports, play an important role in heterogeneous catalysis because the performance of a [...]

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 [...]

An Architecture of Quantum CPU

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

We present a quantum CPU (central processing unit) which is based on the quantum gate set. Using the Von Neuman model, the quantum CPU has development on a classical Digital Signal Processor (DSP TI6711). The [...]

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. [...]

Porous Hierarchical Structures of TiO2 Nanotubes

Flores P., Dominguez J.M., PETROLEUM INSTITUTE (IMP), MX

Recently, carbon nanotubes have been a subject of intensive research due to potential uses in the fields of adsorption, microelectronics, hydrogen storage and catalysis, among others. Other inorganic nanotubes have been synthesized too, i.e., TiO2, [...]

QBITS Simulations for Develompment of Quantum Computer using the DSP 6711

Téllez V.H., Duchen G., Campero A., Iuga C., UAM, MX

Quantum computation is a new technology with the potential for providing exponential parallelism, but a quantum computation is a series of quantum logic gates. This work uses the DSP 6711 to simulate the different quantum [...]

Synthesis of Nanostructures from Carbides Sheets

Diaz Barriga Arceo L., Garibay Febles V., Orozco E., Zeifert B., Palacios Gonzalez E., German C.R.Sr., Rios-Guerrero L., Leyte Guerrero F., Instituto Politecnico Nacional, MX

Nanotubes and nanoparticles were obtained from a lamellar solid phase using a two step method: mechanical alloying (MA) and heat treatment. MA was used to prepare the monometallic carbide and the bimetallic carbides by milling [...]