Low-dimensional Res2/C composite as effective hydrodesulfurization catalyst
Author
dc.contributor.author
Aliaga, Juan Antonio
Author
dc.contributor.author
Zepeda, Trino
Author
dc.contributor.author
Araya, Juan Francisco
Author
dc.contributor.author
Paraguay Delgado, Francisco
Author
dc.contributor.author
Benavente, Eglantina
Author
dc.contributor.author
Alonso Núñez, Gabriel
Author
dc.contributor.author
Fuentes, Sergio
Author
dc.contributor.author
González Moraga, Guillermo
Admission date
dc.date.accessioned
2019-05-29T13:41:23Z
Available date
dc.date.available
2019-05-29T13:41:23Z
Publication date
dc.date.issued
2017
Cita de ítem
dc.identifier.citation
Catalysts, Volumen 7, Issue 12, 2017
Identifier
dc.identifier.issn
20734344
Identifier
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10.3390/catal7120377
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/169130
Abstract
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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/
-Al2O3 catalyst. The ReS2/C composite was characterized by X-ray diffraction
(XRD), Raman spectroscopy, N2 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 (ReS2x),
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.