Zirconia‐supported cobalt catalysts: activity and selectivity in NO reduction by CO

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorLima, Thiago M.-
Autor(es): dc.creatorPereira, Cristiane A.-
Autor(es): dc.creatorCastelblanco, William N.-
Autor(es): dc.creatorSantos, Camila M. B.-
Autor(es): dc.creatorSilva, Sebastião W. da-
Autor(es): dc.creatorSantana, Ricardo C.-
Autor(es): dc.creatorUrquieta-González, Ernesto A.-
Autor(es): dc.creatorSartoratto, Patrícia P. C.-
Data de aceite: dc.date.accessioned2026-02-09T11:51:58Z-
Data de disponibilização: dc.date.available2026-02-09T11:51:58Z-
Data de envio: dc.date.issued2018-07-13-
Data de envio: dc.date.issued2018-07-13-
Data de envio: dc.date.issued2017-12-11-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/29622-
Fonte completa do material: dc.identifierhttps://onlinelibrary.wiley.com/doi/abs/10.1002/slct.201702475-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1149168-
Descrição: dc.descriptionCobalt catalysts supported on tetragonal and monoclinic zirconia were prepared using a one‐pot procedure through the incorporation of a Co3O4 colloidal suspension during the support synthesis and evaluated in the reaction of NO reduction by CO. A better dispersion of the active phase was obtained by this method when compared to the conventional impregnation one. Furthermore, the crystalline phase of zirconia in the supports had a crucial effect in the dispersion of the cobalt species, being that the pure tetragonal phase led to a higher dispersion of the active phase. The one‐pot prepared tetragonal zirconia led to cobalt active species that consisted in well‐dispersed small agglomerates of Co3O4 and Co2+ species as oxo‐ions which displayed the best catalytic performance among the studied catalysts, with the highest NO conversion (75%) and high selectivity to N2 (85%) at 300 °C. These results show that the one‐pot methodology employed in this work has a strong potential to produce suitable catalysts for the abatement of NOx emissions.-
Idioma: dc.languageen-
Publicador: dc.publisherChemPubSoc Europe-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceChemistry Select-
Palavras-chave: dc.subjectCobalt oxide-
Palavras-chave: dc.subjectColloidal suspension-
Palavras-chave: dc.subjectNO reduction-
Palavras-chave: dc.subjectZirconia-
Palavras-chave: dc.subjectÓxido de cobalto-
Palavras-chave: dc.subjectSuspensão coloidal-
Palavras-chave: dc.subjectRedução de NO-
Título: dc.titleZirconia‐supported cobalt catalysts: activity and selectivity in NO reduction by CO-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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