Publicación:
CARBOTHERMIC REDUCTION OF CARBON AEROGEL-SUPPORTED FE DURING THE CATALYTIC DECOMPOSITION OF TOLUENE

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dc.creatorLUIS ERNESTO ARTEAGA PÉREZ
dc.date2021
dc.date.accessioned2025-01-10T15:21:55Z
dc.date.available2025-01-10T15:21:55Z
dc.date.issued2021
dc.description.abstractIRON-CATALYZED TAR DECOMPOSITION IS STUDIED BY INSPECTING CHANGES IN CATALYTIC ACTIVITY AND ITS CORRELATION TO THE METAL OXIDATION NUMBERS. A CARBON-AEROGEL-SUPPORTED IRON (FE/CAG) CATALYST WAS USED HEREIN TO DECOMPOSE TOLUENE (MODEL TAR) AT BETWEEN 500 °C AND 700 °C. THE CATALYTIC DECOMPOSITION WAS STUDIED IN A CONVENTIONAL REACTION SYSTEM, AND THE CATALYST WAS CHARACTERIZED PRIOR TO AND AFTER THE REACTION TO UNDERSTAND THE EFFECT OF THE STRUCTURAL CHANGES IN THE CATALYTIC ACTIVITY. THE RESULTS DEMONSTRATED THAT THE IRON OXIDATION STATE AND COKE DEPOSITION STRONGLY DEPEND ON THE REACTION TEMPERATURE. THE X-RAY DIFFRACTION PATTERNS CONFIRMED THAT AT T < 700 °C, SEVERAL FEI+ ARE PRESENT, WHILE AT 700 °C, FE° PREVAILS, SUGGESTING A RECONSTRUCTION OF THE METAL CLUSTERS ON THE SURFACE. THE FE/C RATIO DETERMINED BY ELEMENTAL MAPPING (EDS), AS WELL AS THERMOGRAVIMETRIC ANALYSIS COUPLED TO MASS SPECTROMETRY (TGA-MS) OF THE SPENT CATALYSTS, CONFIRMED THAT THIS SURFACE RECONSTRUCTION IS RELATED TO CARBOTHERMIC REDUCTION OF THE METAL OXIDES AND ASSISTED BY CARBON DEPOSITION.
dc.formatapplication/pdf
dc.identifier.doi10.1016/j.cattod.2020.10.033
dc.identifier.issn1873-4308
dc.identifier.issn0920-5861
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/11668
dc.languagespa
dc.publisherCATALYSIS TODAY
dc.relation.uri10.1016/j.cattod.2020.10.033
dc.rightsPUBLICADA
dc.titleCARBOTHERMIC REDUCTION OF CARBON AEROGEL-SUPPORTED FE DURING THE CATALYTIC DECOMPOSITION OF TOLUENE
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN MADERAS
ubb.SedeCONCEPCIÓN
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