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dc.contributor.author
Gross, Martin Sebastian
dc.contributor.author
Ulla, Maria Alicia del H.
dc.contributor.author
Querini, Carlos Alberto
dc.date.available
2018-08-27T14:49:29Z
dc.date.issued
2009-05
dc.identifier.citation
Gross, Martin Sebastian; Ulla, Maria Alicia del H.; Querini, Carlos Alberto; Catalytic oxidation of diesel soot: New characterization and kinetic evidence related to the reaction mechanism on K/CeO2 catalyst; Elsevier Science; Applied Catalysis A: General; 360; 1; 5-2009; 81-88
dc.identifier.issn
0926-860X
dc.identifier.uri
http://hdl.handle.net/11336/57165
dc.description.abstract
The oxidation of diesel soot using K/CeO2 catalysts is studied in this paper. The reaction system involved in the catalytic oxidation of soot is quite complex; therefore, the study of reaction mechanisms is particularly difficult to address and, consequently, there are few publications related to this topic. In this work, kinetic tests providing new information on this mechanism are shown. Using temperature-programmed oxidation experiments designed in order to get the combustion of only a fraction of the soot, it was possible to observe transient phenomena that demonstrate that the soot oxidation reaction involves many steps and intermediate species. Fourier transform infrared spectroscopy (FTIR), SEM and energy-dispersive X-ray analysis (EDX) characterization results obtained before and after partial burning experiments of soot, also provided information on catalysts morphological changes during the reaction. It was found that peroxide and superoxides associated to CeO2 are present on the catalyst during soot oxidation. On the other hand, carbonates are formed on the catalyst surface reaching a pseudo-steady-state. The formation of peroxides and superoxides and its surface diffusion explained the transient behavior observed during temperature-programmed experiments designed to burn a fraction of soot under isothermal condition.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Diesel Soot
dc.subject
Kinetics
dc.subject
Mechanism
dc.subject
Cerium Oxide Catalysts
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Catalytic oxidation of diesel soot: New characterization and kinetic evidence related to the reaction mechanism on K/CeO2 catalyst
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-24T15:33:00Z
dc.journal.volume
360
dc.journal.number
1
dc.journal.pagination
81-88
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Gross, Martin Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
dc.description.fil
Fil: Ulla, Maria Alicia del H.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
dc.description.fil
Fil: Querini, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
dc.journal.title
Applied Catalysis A: General
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.apcata.2009.03.011


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    Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"

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