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In Situ Thermal-Stage Fitted-STEM Characterization of Spherical-Shaped Co/MoS2 Nanoparticles for Conversion of Heavy Crude Oils
dc.contributor.author | Ramos Murillo, Manuel Antonio | |
dc.date.accessioned | 2020-12-23T20:35:51Z | |
dc.date.available | 2020-12-23T20:35:51Z | |
dc.date.issued | 2020-10-27 | es_MX |
dc.identifier.uri | http://cathi.uacj.mx/20.500.11961/15922 | |
dc.description.abstract | We report the thermal stability of spherically shaped cobalt-promoted molybdenum disulfide (Co/MoS2) nano-catalysts from in-situ heating under electron irradiation in the scanning transmission electron microscope (STEM) from room temperature to 550°C , +/- 50°C with aid of Fusion® holder (Protochip©, Inc.). The catalytic nanoparticles were synthesized via a hydrothermal method using sodium molybdate (Na2MoO4.2H2O) with thioacetamide (CH3CSNH2) and cobalt chloride (CoCl2) as promoter agent. The results indicate that the layered molybdenum disulfide structure with interplanar distance of ~0.62 nm remains stable even at temperatures of 550°C as observed in STEM mode. Subsequently, the samples were subjected to catalytic tests in a Robinson Mahoney Reactor using 30 g of Heavy Crude Oil (AGT-72) from the golden lane (Mexico’s east coast) at 50 atm using (ultrahigh purity) UHP hydrogen under 1000 rpm stirring at 350°C for 8 h. It was found that there is no damage on the laminar stacking of Co/MoS2 with temperature, with interlayer spacing remaining at 0.62 nm; these sulfided catalytic materials led to aromatics rise of 22.65% and diminution of asphaltenes and resins by 15.87 and 3.53%, respectively. | es_MX |
dc.description.uri | https://www.mdpi.com/2073-4344/10/11/1239 | es_MX |
dc.language.iso | en_US | es_MX |
dc.relation.ispartof | Producto de investigación IIT | es_MX |
dc.relation.ispartof | Instituto de Ingeniería y Tecnología | es_MX |
dc.rights | CC0 1.0 Universal | * |
dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | * |
dc.subject | catalyst; materials; thermal; oil; molybdenum; cobalt; sulfur | es_MX |
dc.subject.other | info:eu-repo/classification/cti/1 | es_MX |
dc.title | In Situ Thermal-Stage Fitted-STEM Characterization of Spherical-Shaped Co/MoS2 Nanoparticles for Conversion of Heavy Crude Oils | es_MX |
dc.type | Artículo | es_MX |
dcterms.thumbnail | http://ri.uacj.mx/vufind/thumbnails/rupiiit.png | es_MX |
dcrupi.instituto | Instituto de Ingeniería y Tecnología | es_MX |
dcrupi.cosechable | Si | es_MX |
dcrupi.norevista | 11 | es_MX |
dcrupi.volumen | 10 | es_MX |
dcrupi.nopagina | 1-10 | es_MX |
dc.identifier.doi | https://doi.org/10.3390/catal10111239 | es_MX |
dc.journal.title | Catalysts | es_MX |
dc.lgac | ESTUDIOS EXPERIMENTALES EN SUPERFICIES E INTERFACES DE LOS MATERIALES | es_MX |
dc.cuerpoacademico | Superficies, Interfaces y Simulación de Materiales Avanzados | es_MX |
dc.contributor.coauthorexterno | Galindo-Hernández, Félix | |
dc.contributor.coauthorexterno | Torres, Brenda | |
dc.contributor.coauthorexterno | DOMINGUEZ, JOSE MANUEL | |
dc.contributor.coauthorexterno | Heilmaier, Martin |