ListarDivisión de Nanociencias y Materiales por tema "QUÍMICA"
Mostrando ítems 21-40 de 98
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Effective photoreduction of a nitroaromatic environmental endocrine disruptor by AgNPs functionalized on nanocrystalline TiO2
(2015)"Unprecedented photoactivity of silver nanoparticles photodeposited on nanocrystalline TiO2 for the efficient reduction of 4-nitrophenol at room temperature is reported. The use of Na2SO3 as a harmless scavenger agent for ... -
Efficient carbon nanotube sponges production boosted by acetone in CVD-Synthesis
(2018)"A high production of nitrogen-doped carbon nanotube sponges (N-CNS) was obtained at 1020 °C with 4 h of growth in an aerosol-assisted chemical vapor deposition (AACVD) experiment modified with two independent sprayers ... -
Electron transport study on functionalized armchair graphene nanoribbons: DFT calculations
(2016)"Quantum transport studies are performed on doped and functionalized 8- and 11-armchair graphene nanoribbons (aGNRs) by means of density functional theory. Substitutional doping is performed by introducing boron, nitrogen, ... -
Electrum, the gold–silver alloy, from the bulk scale to the nanoscale: synthesis, properties, and segregation rules
(American Chemical Society, 2016)"The alloy Au–Ag system is an important noble bimetallic phase, both historically (as “Electrum”) and now especially in nanotechnology, as it is applied in catalysis and nanomedicine. To comprehend the structural characteristics ... -
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 ... -
Estudio del efecto elastocalórico en aleaciones Ni-Mn-X (X=In, Ga)
(2012-01)"Se realizó un estudio del efecto elastocalórico en las aleaciones con memoria de forma Ni48.6Mn31.0In20.4 y Ni47.7Mn31.2Ga21.1. El estudio se realizó durante la transformación martensítica aplicando esfuerzo en compresión. ... -
Estudio experimental de nanotubos de carbono dopados con nitrógeno y de óxido de grafeno
(10/07/2017)"En esta tesis se presentan la segunda parte del estudio sistemático de síntesis y caracterización de nanotubos de carbono dopados con nitrógeno (CNx) mediante la técnica de deposición química de vapores (CVD). Partimos ... -
Facile synthesis of a TiO2-Al2O3-GnPs compound and its application in the photocatalytic degradation of Diuron
(Elsevier, 2022)"New ternary materials TiO2-Al2O3-GnPs (TAG) were prepared by using an innocuous sol-gel method with a slight modification for the addition of graphene nanoplatelets (GnPs), under room temperature and atmospheric pressure. ... -
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 ... -
First-principles study of Ni adatom migration on graphene with vacancies
(Royal Society of Chemistry, 2019)"A theoretical study based on first-principles calculations about the interaction and diffusion of Ni atoms on pristine graphene and graphene with a single vacancy is presented. In the first case, we explored the structural ... -
Formation and atomic structure of hierarchical boron nitride nanostructures
(2015)"We report a combined experimental and theoretical study of boron nitride (BN) nanostructures synthesized by ball milling methodology. The BN nanostructures were obtained using h-BN powder under low-vacuum conditions and ... -
Furan and Pyran Functional Groups Driven the Surface of Nitrogen-Doped Nanofiber Sponges
(Wiley, 2020)"Highly surface oxidized, nitrogen?doped, and nitrogen functionalized carbon nanotube sponge (N?CFS) were produced at 1020?°C using two sprayers approach in an aerosol?assisted chemical vapor deposition (AACVD) experiment. ... -
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 ... -
Giant reversible inverse magnetocaloric effects in Ni50Mn35In15 Heusler alloys
(Elsevier, 2016)"The magnetic properties and reversibility of the magnetocaloric effect of Ni50Mn35In15 have been studied in the vicinity of the phase transition using magnetization and direct adiabatic temperature change (?Tad) measurements ... -
Gold nanoparticle-mediated generation of reactive oxygen species during plasmonic photothermal therapy: a comparative study for different particle sizes, shapes, and surface conjugations
(Royal Society of Chemistry, 2020)"Gold nanoparticle (AuNP)-mediated photothermal therapy represents an alternative to the effective ablation of cancer cells. However, the photothermal response of AuNPs must be tailored to improve the therapeutic efficacy ... -
Gold-TiO2-Nickel catalysts for low temperature-driven CO oxidation reaction
(2016)"Nickel-doped-TiO2 catalysts were prepared by the sol–gel method and surface modified with gold nanoparticles (AuNPs) by the urea-deposition-precipitation technique. The as-synthesized catalysts were characterized by X-ray ... -
Growth of Ni nanoclusters on irradiated graphene: A molecular dynamics study
(Royal Society of Chemistry, 2018)"We studied the soft landing of Ni atoms on a previously damaged graphene sheet by means of molecular dynamics simulations. We found a monotonic decrease of the cluster frequency as a function of its size, but few big ... -
Growth of Trichoderma atroviride and importance of the nano-motor Kinesin-1 in its development
(2019-02)"The vegetative growth of filamentous fungi comprises cell elongation and branching. This complex process involves Intracellular transport of molecules, vesicles and organelles within the cell interior, assisted by motor ... -
Heterojunction of CuO nanoclusters with TiO2 for photo-oxidation of organic compounds and for hydrogen production
(American Institute of Physics, 2020)"Heterojunctions of small CuO nanoclusters (synthesized by radiolysis) with TiO2 (commercial P25) induced a photocatalytic activity under visible light irradiation in a wide range of wavelengths due to the narrow bandgap ... -
High temperature martensitic transformation and giant magnetocaloric effect in Ni40Co10Mn41Sn9 melt-spun ribbons
(Elsevier, 2018)"We report a large magnetic entropy change associated with a high-temperature martensitic transformation in Ni40Co10Mn41Sn9 (at. %) melt-spun ribbons. The ribbons underwent a first-order forward martensitic transition and ...