Síntesis de nanopartículas de Níquel y Molibdeno mediante ablación láser para aplicación en catálisis heterogénea

dc.contributorRestrepo Parra, Elisabeth
dc.contributorOspina Ospina, Rogelio
dc.contributorLaboratorio de Fisica del Plasma
dc.creatorLondoño Calderón, Viviana
dc.date.accessioned2020-08-03T22:40:23Z
dc.date.available2020-08-03T22:40:23Z
dc.date.created2020-08-03T22:40:23Z
dc.date.issued2020
dc.identifierV. Londoño-Calderón, “Síntesis de nanopartículas de Níquel y Molibdeno mediante ablación láser para aplicación en catálisis heterogénea Síntesis de nanopartículas de Níquel y Molibdeno mediante ablación láser para aplicación en catálisis heterogénea” 2020.
dc.identifierhttps://repositorio.unal.edu.co/handle/unal/77908
dc.description.abstractEn el presente trabajo se sintetizaron y caracterizaron nanopartículas de Ni y Mo para ser utilizadas como precursor, con el fin de producir un catalizador NiMo/γAl2O3, el cual también fue caracterizado y activado para evaluar su desempeño catalítico en una reacción de HDS. Los resultados mostraron que el porcentaje de conversión de la molécula modelo utilizada en la reacción catalítica fue de alrededor de 17%, posiblemente debido a que, según la cuantificación de los resultados de XPS el porcentaje atómico de la fase activa (Mo) es menor que el porcentaje atómico del promotor, dando lugar a que el metal promotor (Ni) pueda estar ocupando sitios activos del Mo, quitándole superficie efectiva a éste y dando como consecuencia un efecto contrario a la función del promotor (Texto tomado de la fuente)
dc.description.abstractIn the present work, Ni and Mo nanoparticles were synthesized and characterized in order to be used as a precursor to produce a NiMo/γAl2O3 catalyst, which was also characterized and activated to evaluate its catalytic performance in an HDS reaction. The results show that the conversion percentage of the model molecule detected in the catalytic reaction was around 17%, possibly because according to the quantification of the XPS results, the atomic percentage of the active phase (Mo) islower than the atomic percentage of the promoter (Ni), resulting in the promoter metal (Ni) being able to occupy active sites of the Mo, filling up part of the effective surface of the Mo and causing a contrary effect to the function of the promoter
dc.languagespa
dc.publisherManizales - Ciencias Exactas y Naturales - Maestría en Ciencias - Física
dc.publisherDepartamento de Física y Química
dc.publisherUniversidad Nacional de Colombia - Sede Manizales
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dc.rightsAtribución-NoComercial 4.0 Internacional
dc.rightsAcceso abierto
dc.rightshttp://creativecommons.org/licenses/by-nc/4.0/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.titleSíntesis de nanopartículas de Níquel y Molibdeno mediante ablación láser para aplicación en catálisis heterogénea
dc.typeOtro


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