División de Nanociencias y Materiales: Envíos recientes
Mostrando ítems 121-140 de 588
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One-Pot Synthesis of Anatase, Rutile-Decorated Hydrogen Titanate Nanorods by Yttrium Doping for Solar H2 Production
(American Chemical Society, 2020)"We have prepared yttrium (Y)-doped hydrogen titanate nanorods (HTN) by a microwave-assisted hydrothermal method. Y-doped HTN showed much improved photocatalytic activities for both H2 evolution and dye decomposition. H2 ... -
Esponjas de Nanotubos de Carbono a partir de Alcoholes
(2020-10)"Las esponjas de carbono están definidas como aquellas estructuras formadas por nanotubos de carbono dispuestos en un arreglo tipo tridimensional y muestran propiedades interesantes tales como: superhidrofobicidad, porosidad, ... -
Síntesis, caracterización y evaluación de oxicloruro de bismuto (BiOCl) en fotocatálisis heterogénea
(2021-02)"El oxicloruro de bismuto (BiOCl) es un semiconductor relativamente nuevo en el ámbito de la fotocatálisis heterogénea, se ha utilizado en el tratamiento de aguas para la remoción de colorantes y algunos compuestos más ... -
Magnetic fields produced by non-concentric and non-coplanar currents in circular loops
(IOP Publishing, 2019)"A numerical calculation for the stationary magnetic field produced by arrangements of non-concentric and non-coplanar loop current circuits is presented. The calculation is done by superposing the solution of the magnetic ... -
Stability analysis of orbital modes for a generalized Lane-Emden equation
(Elsevier, 2019)"We present a stability analysis of the standard nonautonomous systems type for a recently introduced generalized Lane-Emden equation which is shown to explain the presence of some of the structures observed in the atomic ... -
Generalized Cornu-type spirals and their Darboux parametric deformations
(Elsevier, 2019)"We generalize the Fresnel integrals and introduce a class of spirals F-n, which contains the Cornu spiral as the case F-2. Their Darboux parametric deformations are also investigated. The F-3 spiral and some of its Darboux ... -
A first principles systematic study of the structural, electronic, and magnetic properties of Heusler X2MnZ with X = Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Pt, Au and Z = Al, Si, Ga, Ge, In and Sn
(IOP Publishing, 2019)"An exhaustive study of the structural stability, electronic, and magnetic properties of the ternary X2MnZ Heusler alloys, in cubic and tetragonal lattice cells, is presented. We performed density-functional-theory (DFT) ... -
Giant and Reversible Inverse Barocaloric Effects near Room Temperature in Ferromagnetic MnCoGeB0.03
(Wiley, 2019)"Hydrostatic pressure represents an inexpensive and practical method of driving caloric effects in brittle magnetocaloric materials, which display first?order magnetostructural phase transitions whose large latent heats ... -
Effect of the anchoring strength on the phase behaviour of discotic liquid crystals under face-on confinement
(IOP Publishing, 2019)"In this study we have performed molecular dynamics simulations to study a Gay-Berne discotic fluid confined in a slab geometry for a fixed confinement length. Four different anchoring strengths with a homeotropic (face-on) ... -
Effect of ball to powder ratio on the mechanosynthesis of Re2C and its compressibility
(Elsevier, 2019)"The mechanosynthesis of hexagonal rhenium carbide (Re2C) from the elements is explored as a function of the balls to powder ratio (BPR). Burgios's equation has been used to calculate the accumulated energy (Delta E-accum) ... -
Inhibition of Fungal Growth Using Modified TiO2 with Core@Shell Structure of Ag@CuO Clusters
(American Chemical Society, 2019)"The photocatalytic disinfection (PCD) properties of TiO2 have attracted attention in the research communities because the produced reactive oxygen species (ROS) allow destruction of different types of microbes, such as ... -
In situ ion beam sputter deposition and X_ray photoelectron spectroscopy (XPS) of multiple thin layers under computer control for combinatorial materials synthesis
(Wiley, 2017)"Deposition of ultra_thin layers under computer control is a frequent requirement in studies of novel sensors, materials screening, heterogeneous catalysis, the probing of band offsets near semiconductor junctions and many ... -
Wavelet characterization of hyper-chaotic time series
(Sociedad Mexicana de Física, A.C., 2018)A wavelet scaling numerical characterization of time series based on the variance of the wavelet coefficients is used for three well-known four-dimensional and one five-dimensional hyper-chaotic systems. We report several ... -
Materials and devices for organic electronics
(Hindawi Publishing Corporation, 2011) -
Enhancement of NOx photo-oxidation by Fe-doped TiO2 nanoparticles
(NRF, 2019)"Microwave hydrothermal-assisted sol-gel method was employed to synthesize the Fe doped TiO2 photocatalyst. Themorphological analysis suggests anatase phase nanoparticles of ~20 nm with an SBET area of 283.99 m2/g. The ... -
“Compósito de SiO2/Quitosano” prospecto para uso como excipiente avanzado para la administración de fármacos por vía oral
(2020-11-17)"La ciencia de los materiales continúa estudiando y generando una nueva generación de excipientes, denominados excipientes avanzados. Estos, están diseñados como soportes activos de los fármacos y ayudan a aumentar su ... -
Synthesis, characterization and physical properties of nitrogen doped 3D carbon nanostructures grown over subtrates by the chemical vapor deposition technique
(2020-07)"El crecimiento de una variedad de nanoestructuras de carbono es aún considerado un tema relevante, en especial aquellos tópicos relacionados con el crecimiento de estructuras 3D de carbono en la que se emplean unidades ... -
Síntesis y caracterización de Óxido de Grafeno Exfoliado por microondas con posible aplicación en Supercapacitores
(2020-07-10)"El objetivo de este trabajo de tesis se centró en el análisis y obtención de óxido de grafeno reducido mediante la exfoliación por microondas y un posterior tratamiento térmico, así como la evaluación de óxido de grafeno ... -
Síntesis y funcionalización de nanopartículas de carbono tipo cebollas para fabricación de supercapacitores
(2020)"Por medio de la combustión de naftaleno se sintetizaron nanopartículas de car- bono tipo cebollas (CNOs), sin la presencia de un catalizador, produciéndose además grandes cantidades (a escala de gramos) en tiempos reducidos ... -
Síntesis por solidificación rápida y caracterización magneto-estructural y magnetocalórica de la aleación cuaternaria Ni37.5Co12.5Mn35Ti15
(13/07/2020)"En el presente trabajo de tesis se estudian las propiedades estructurales, microestructurales, térmicas y magnéticas de cintas recién solidificadas (referidas como as-cast) y tratadas térmicamente desde 973 K a 1173 K ...