División de Nanociencias y Materiales: Envíos recientes
Mostrando ítems 61-80 de 588
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Desarrollo de dispositivos para almacenamiento de energía, utilizando materiales a base de carbono, óxidos y polímeros
(2022-05-18)"Los supercapacitores (SC) son dispositivos de almacenamiento de energía empleados en aplicaciones tales como vehículos eléctricos híbridos (HEV), teléfonos celulares, sistemas de cómputo, fuentes de energía de respaldo ... -
Predicción de parámetros estructurales para membranas de Polisulfona, mediante modelos de Diseño de Experimentos y Aprendizaje de Máquina.
(2022-04)"Actualmente enfrentamos una crisis del agua muy grave, que nos obliga a buscar múltiples soluciones a dicho problema. Una de ellas es filtrar el agua para reutilizarla, y para ello se han usado membranas con distintos ... -
Desarrollo de textiles magnéticos mediante la síntesis química in-situ de nanopartículas de magnetita
(2022-04-06)"En el presente trabajo se ha validado la adaptación de la técnica de coprecipitación química para la síntesis de nanopartículas de magnetita para la obtención de fibras y telas magnéticas. La técnica se enfoca en la ... -
Síntesis de catalizadores NiMoW y su evaluación catalítica en la reacción de hidrodesulfuración del dibenzotiofeno
(2020-09-24)"En la presente tesis, varios catalizadores soportados de NiMoW se sintetizaron y probaron en la reacción de hidrodesulfuración (HDS) del dibenzotiofeno (DBT). Se evaluó la influencia del bromuro de cetil-trimetil amonio ... -
Modificación de poliolefinas con poliésteres alifáticos para obtener compositos para aplicaciones biomédicas
(2022-03-21)"Compositos poliméricos a base de polietilenos, como el polietileno de alta densidad (HDPE) y el polietileno de ultra alto peso molecular (UHMWPE) y policaprolactona (PCL) con un relleno cerámico de bioglass (BG) e ... -
Wastewater Contaminated with Hydrazine as Scavenger Agent for Hydrogen Production by Cu/Ti Nanostructures
(MDPI, 2021)"Cu/Ti photocatalysts were prepared by the sol-gel process with different copper loadings (1.0, 2.5, and 5.0 wt.%) and then thermally treated at several calcination temperatures from 400 to 600 °C. The materials were ... -
El desarrollo de la Física en San Luis Potosí Parte 2: de la fundación de la Escuela e Instituto de Física a la actualidad
(Sociedad Mexicana de Física, 2020) -
Nitrogen–phosphorus doped graphitic nano onion-like structures: experimental and theoretical studies
(Royal Society of Chemistry, 2021)"Onion-like graphitic structures are of great importance in different fields. Pentagons, heptagons, and octagons are essential features of onion-like graphitic structures that could generate important properties for diverse ... -
First-principles study of Mn3adsorbed on Au(111) and Cu(111) surfaces
(Royal Society of Chemistry, 2021)"A theoretical study of the Mn trimer adsorbed on the noble metal surfaces Au(111) and Cu(111) is reported. The calculations were performed using first-principles methods within the density functional theory and the ... -
Effect of silicon dots into coconut fibers on the nucleating capacity of β-crystals of polypropylene
(Universidad Autónoma Metropolitana, 2021)"Three concentrations of sodium hydroxide (3, 5, and 7% based on a composition by weight) and 2 reaction times (1 and 4 h) were used to treat coconut fiber. According to the results, the inclusion of treated fiber in polymer ... -
Control of the asymmetric growth of nanowire arrays with gradient profiles
(Royal Society of Chemistry, 2021)"A novel electrochemical methodology for the growth of arrays of Ni and Co nanowires (NWs) with linear and non-linear varying micro-height gradient profiles (?HGPs), has been developed. The growth mechanism of these ... -
El desarrollo de la Física en San Luis Potosí Parte I: de la época colonial a la institucionalización de la física
(Sociedad Mexicana de Física, 2020) -
Magnetic properties of Fe nanoclusters: ab initio calculations of FeN N = 9,15, 27, 51, and 59
(Sociedad Mexicana de Física, A. C., 2006)"The magnetic properties of iron clusters (FeN, N = 9, 15, 27, 51, and 59 atoms) at T = 0 K with bcc–like structure and bulk parameters are studied using ab initio methods. In these studies we consider the spin–orbit ... -
Magnetic properties of fe1 / crn nanoinclusions in fe
(Sociedad Mexicana de Física, A. C., 2002)"The magnetic properties of Fe1/CrN inclusions in a Fe matrix are calculated as a function of the Cr number of atoms N at zero temperature, and for N ? 168. The electronic structure is determined by using a realistic ... -
Factorization method for some inhomogeneous Lienard equations
(Sociedad Mexicana de Física, A. C., 2021)"The factorization of inhomogeneous Li\'enard equations is performed showing that through the factorization conditions involved in the method one can obtain forcing terms for which closed-form solutions exist. Because of ... -
Insights into Equilibrium and Adsorption Rate of Phenol on Activated Carbon Pellets Derived from Cigarette Butts
(MDPI, 2021)"In the present work, the preparation of activated carbon pellets from cigarette butts by thermal treatment was evaluated. The morphological, textural, topological, and surface chemical properties were studied by SEM-EDX, ... -
El meteorito Charcas y su impacto
(Sociedad Mexicana de Física, 2007) -
Nanoestructuras y su caracterización por medio de microscopía electrónica de transmisión; ciencia y arte
(UNAM, 2020)"The description of nanometric systems is still being a challenging topic, for this reason the transmission electron microscopy (TEM) scope is exemplified in a didactic way using several nanosystems (Au nanoparticles and ... -
División de Materiales Avanzados-IPICyT*
(UNAM, 2016)"En este trabajo se describen las actividades en nanociencias y nanotecnologías (NyN) que se llevan a cabo en la División de Materiales Avanzados del Instituto Potosino de Investigación Científica y Tecnológica A.C. (IPICyT). ... -
Synthesis of a PVA drug delivery system for controlled release of a Tramadol–Dexketoprofen combination
(Springer, 2021)"The local administration of analgesic combinations by means of degradable polymeric drug delivery systems is an alternative for the management of postoperative pain. We formulated a Tramadol–Dexketoprofen combination (TDC) ...