Publicaciones 2011-2020

@article{RN349,
title = {Microspherical Res2 as a High-Performance Hydrodesulfurization Catalyst},
author = { J.A. Aliaga and T.N. Zepeda and B.N. Pawelec and J.F. Araya and J. Antunez-Garcia and M.H. Farias and S. Fuentes and D. Galvan and G. Alonso-Nunez and G. Gonz\'{a}lez},
url = {/brokenurl#<Go to ISI>://WOS:000400356200016},
doi = {10.1007/s10562-017-2024-6},
issn = {1011-372x},
year = {2017},
date = {2017-01-01},
journal = {Catalysis Letters},
volume = {147},
number = {5},
pages = {1243-1251},
abstract = {An unsupported microspherical ReS2 catalyst, consisting in self-assembled nano-layers, was evaluated in the hydrodesulfurization (HDS) of 3-methylthiophene showing an excellent catalytic activity. The samples were characterized by X-ray diffraction, scanning electron microscopy, high resolution electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. These techniques revealed that the rhenium disulfide layers are confined to a 3D hierarchical structure with different stacking, slab size and bending, according to the annealing temperature (400 or 800 A degrees C). The presence of a defect-rich structure in the microspheres, with short and randomly-orientated ReS2 slabs, results in the exposure of additional edge sites, which improve the catalytic performance of this material. This microspherical ReS2 composite, with good HDS performance, is a promising catalyst for the desulfurization of fuel oils; the solvothermal reaction conditions are also useful to tune and create exotic morphologies for the design of new ReS2 catalysts.},
keywords = {carbon, catalysis, composites, dichalcogenides, disulfide, evolution, heterogeneous hidrodesulfurization, hydrodeoxygenation, hydrogen molybdenum-disulfide, nanoparticles, nanosized rhenium solvothermal sulfide, sulfides, synthesis, technetium transition-metal},
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}
}