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{aliaga2015onepot,
title = {An Easy One-Pot Solvothermal Synthesis of Poorly Crystalline Solid Res2/C Microspheres},
author = { J.A. Aliaga and J.F. Araya and H. Lozano and E. Benavente and G. Alonso-Nunez and G. Gonz\'{a}lez},
url = {/brokenurl#<Go to ISI>://WOS:000348263600051},
doi = {10.1016/j.matchemphys.2014.12.012},
issn = {0254-0584},
year = {2015},
date = {2015-01-01},
journal = {Materials Chemistry and Physics},
volume = {151},
pages = {372-377},
publisher = {2014 Elsevier B.V.},
abstract = {Dense microspheres consisting of poorly crystalline ReS2 embedded in carbon were synthesized with a high yield via a facile one-pot solvothermal route, by reacting dirhenium decacarbonyl, elemental sulfur and an aromatic solvent (benzene, toluene or p-xylene) for 24 h at 180 degrees C. X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS), Raman spectroscopy, and Fourier transform infrared spectroscopy (Fr-IR) techniques were used to characterize the samples. The resulting microspheres were dense, with average diameters between 0.79 and 1.40 mu m, had smooth surfaces and were constructed of ReS2 sheet-like structures with 4.5-9.8 wt % of structural amorphous carbon, which is retained as a textural stabilizer after calcination at 800 degrees C. The synthesis was repeated using isopropanol and cyclohexane, whose products were agglomerated grains and botryoidal quasi-spherical particles, respectively. A possible formation mechanism of ReS2/C microspheres was preliminarily presented, in order to clarify the mechanistic differences between the rhenium carbonyl and other transition metal carbonyls used in similar syntheses.},
keywords = {amorphous carbon chalcogenides, composite growth-mechanism, material, nanoparticles, reduction, rhenium sulfide, technetium, temperature},
pubstate = {published},
tppubtype = {article}
}