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Catalysts 2017, 7(12), 377;

Low-Dimensional ReS2/C Composite as Effective Hydrodesulfurization Catalyst

Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación (PIDi) Universidad Tecnológica Metropolitana, Ignacio Valdivieso 2409, San Joaquín 8940577, Santiago, Chile
Departamento de Química, Universidad Tecnológica Metropolitana, Las Palmeras 3360, Ñuñoa, Santiago, Chile
Centro de Nanociencia y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada 22860, Baja California, Mexico
Centro de Investigaciones Costeras de la Universidad de Atacama, Universidad de Atacama, Copayapu 485, Copiapó, Chile
Departamento de Física de Materiales, Centro de Investigación Materiales Avanzados S.C., Chihuahua 31136, Mexico
Center for the Development of Nanoscience and Nanotechnology, CEDENNA, Av. Ecuador 3493, Santiago, Chile
Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Santiago, Chile
Author to whom correspondence should be addressed.
Received: 30 October 2017 / Revised: 29 November 2017 / Accepted: 29 November 2017 / Published: 5 December 2017
(This article belongs to the Special Issue Nanostructured Materials for Applications in Heterogeneous Catalysis)
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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/γ-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 (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. View Full-Text
Keywords: rhenium disulfide; hidrodesulfurization; light S-hydrocarbons; thiophene; 3-methylthiophene; solvothermal synthesis; single layer rhenium disulfide; hidrodesulfurization; light S-hydrocarbons; thiophene; 3-methylthiophene; solvothermal synthesis; single layer

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Aliaga, J.A.; Zepeda, T.; Araya, J.F.; Paraguay-Delgado, F.; Benavente, E.; Alonso-Núñez, G.; Fuentes, S.; González, G. Low-Dimensional ReS2/C Composite as Effective Hydrodesulfurization Catalyst. Catalysts 2017, 7, 377.

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