Publicaciones 2011-2020

@article{RN348,
title = {Low-Dimensional Res2/C Composite as Effective Hydrodesulfurization Catalyst},
author = { J.A. Aliaga and T. Zepeda and J.F. Araya and F. Paraguay-Delgado and E. Benavente and G. Alonso-Nunez and S. Fuentes and G. Gonz\'{a}lez},
url = {/brokenurl#<Go to ISI>://WOS:000419187400024},
doi = {10.3390/catal7120377},
issn = {2073-4344},
year = {2017},
date = {2017-01-01},
journal = {Catalysts},
volume = {7},
number = {12},
abstract = {Single-layer, ultrasmall ReS2 nanoplates embedded in amorphous carbon were synthesized from a hydrothermal treatment involving ammonium perrhenate, thiourea, tetraoctylammonium bromide, and further annealing. The rhenium disulfide, obtained as a low dimensional carbon composite (ReS2/C), was tested in the hydrodesulfurization of light hydrocarbons, using 3-methylthiophene as the model molecule, and showed enhanced catalytic activity in comparison with a sulfide CoMo/gamma-Al2O3 catalyst. The ReS2/C composite was characterized by X-ray diffraction (XRD), Raman spectroscopy, N-2 adsorption-desorption isotherms, scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). The improved catalytic performance of this ReS2/C composite may be ascribed to the presence of a non-stoichiometric sulfur species (ReS2-x), the absence of stacking along the c-axis, and the ultra-small basal planes, which offer a higher proportion of structural sulfur defects at the edge of the layers, known as a critical parameter for hydrodesulfurization catalytic processes.},
keywords = {carbon chemical-vapor-deposition, decomposition, disulfide, few-layer growth, hidrodesulfurization, in-situ large-area, layer, light nanosheets, res2, rhenium s-hydrocarbons, single solvothermal synthesis, technetium, thiophene},
pubstate = {published},
tppubtype = {article}
}

@article{RN363,
title = {Effect of the Seed Layer on the Growth and Orientation of the Zno Nanowires: Consequence on Structural Optical Properties},
author = { A. Serrano and A. Arana and A. Gald\'{a}mez and A. Dutt and B.M. Monroy and F. Guell and G. Santana},
url = {/brokenurl#<Go to ISI>://WOS:000416184600065},
doi = {10.1016/j.vacuum.2017.03.010},
issn = {0042-207x},
year = {2017},
date = {2017-01-01},
journal = {Vacuum},
volume = {146},
pages = {509-516},
publisher = {2017 Elsevier Ltd.},
abstract = {High quality vertically aligned zinc oxide (ZnO) nanowires (NWs) were grown on Au-coated aluminum doped zinc oxide (AZO) thin films via vapor-liquid-solid (VLS) technique. AZO seed layers were deposited using two different techniques named as ultrasonic spray pyrolysis (USP) and magnetron sputtering. Structural, morphological and compositional properties of the NWs grown on the two distinct seed layers were analyzed in detail by using X-ray diffraction (XRD), scanning electronic microscopy (SEM) and energy dispersive spectroscopy (EDS) techniques, respectively. In the first case, (seed layer grown by USP technology), NWs showed the (101) orientation, whereas in the second case, (seed layer grown by sputtering) NWs showed (002) orientation. It was confirmed by the SEM images, that NWs with (002) orientation shown better vertical alignment than NWs with (101) orientation. In addition, optical properties were also studied using photoluminescence (PL) spectroscopy and irrespective of the preferred orientation, NWs showed a strong green emission at room temperature. The study made in the present work on the seed layer preparation by two techniques and hence, deposition conditions to achieve fully controllable ZnO nanowires with precise distance, shape, position and orientation could provide opportunities for the fabrication of future optoelectronic devices.},
keywords = {fabrication, layer, luminescence, nanostructures, networks, photoluminescence pressure properties, pyrolysis, seed spray sputtering, temperature, thin-films, ultrasonic zinc-oxide zno},
pubstate = {published},
tppubtype = {article}
}

@article{RN160,
title = {Ozone Distribution in the Lower Troposphere over Complex Terrain in Central Chile},
author = { R.J. Seguel and C. Mancilla and R. Rondanelli and M.A. Leiva and R.G.E. Morales},
url = {/brokenurl#<Go to ISI>://WOS:000319618300021},
doi = {10.1002/jgrd.50293},
issn = {2169-897x},
year = {2013},
date = {2013-01-01},
journal = {Journal of Geophysical Research-Atmospheres},
volume = {118},
number = {7},
pages = {2966-2980},
abstract = {Observations were performed in 12 communities of Central Chile in order to determine the horizontal gradients of ozone in the Santiago Basin and surrounding valleys. Higher ozone mixing ratios were found northeast of the Santiago Basin and included east of the Aconcagua Valley (similar to 70km from Santiago) suggesting that photochemical pollution produced in Santiago is capable of passing through the Chacabuco mountain chain (similar to 1.3km) and have impact downwind from the regions with the largest NOx and VOC emissions. To complement existing surface observations, ozonesonde and tethersonde campaigns were performed in the Santiago Basin and the Aconcagua Valley. The results suggest ozone can accumulate in layers aloft (e.g., >102ppb at 2km) similarly to layers observed in complex topography coastal regions like Southern California. Layers of significant ozone concentrations having a near surface origin were observed above the mixed layer and below the subsidence inversion base. We propose that the ozone in this residual layer can be transported large distances (at least to 70km) to further penetrate into the local environment under conditions of a well-mixed boundary layer.},
keywords = {boundary-layer, california, chemistry, chile, environmental chemistry, evolution, hydrocarbons, layer, metropolitan-area, model organic-compounds, ozone, ozonesondes, photochemical planetary residual santiago, smog, volatile},
pubstate = {published},
tppubtype = {article}
}