Molybdenum-promoted cobalt supported on SBA-15: Steam and sulfur dioxide stable catalyst for CO oxidation

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorLima, Thiago M.-
Autor(es): dc.creatorMacedo, Vinicius de-
Autor(es): dc.creatorSilva, Domingos S. Araújo-
Autor(es): dc.creatorCastelblanco, William Nova-
Autor(es): dc.creatorPereira, Cristiane A.-
Autor(es): dc.creatorRoncolatto, Rodolfo Eugênic-
Autor(es): dc.creatorGawande, Manoj B.-
Autor(es): dc.creatorZbořil, Radek-
Autor(es): dc.creatorVarma, Rajender S.-
Autor(es): dc.creatorUrquieta-González, Ernesto Antonio-
Data de aceite: dc.date.accessioned2026-02-09T12:03:36Z-
Data de disponibilização: dc.date.available2026-02-09T12:03:36Z-
Data de envio: dc.date.issued2020-08-12-
Data de envio: dc.date.issued2020-08-12-
Data de envio: dc.date.issued2020-10-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/42387-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.apcatb.2020.119248-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1153438-
Descrição: dc.descriptionIt was studied a benign one-pot synthesis of a steam and SO2 stable molybdenum promoted cobalt catalyst supported on SBA-15 for CO oxidation runs at 730 ̊C. The physicochemical properties of the catalyst were analyzed by XRD, SEM/HRTEM, UV–vis, Raman spectroscopy, XPS, H2-TPR, and NH3-TPD. Well-dispersed Co3O4 and, molybdenum species allowed to maintain CO conversion close to 90 % against 55 % over the non-Mo-promoted Co-catalyst. That promising behavior was attributed to the strong Co-Mo interaction that improved the acidic properties, which strongly decreased deactivation by SO2 and water steam. The impregnated catalyst presented formation of aggregated MoO3 species and Co3O4 mainly inside the SBA-15 mesopores, leading to lower CO oxidation activity and lower catalytic stability in the presence of the above interfering compounds. Thus, the one-pot prepared molybdenum promoted cobalt catalyst supported over mesoporous silica SBA-15 emerges as a potential alternative to substitute CO oxidation catalysts based on noble metals.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceApplied Catalysis B: Environmental-
Palavras-chave: dc.subjectCobalt catalysts-
Palavras-chave: dc.subjectSBA-15 support-
Palavras-chave: dc.subjectMo-promotion-
Palavras-chave: dc.subjectOne-pot synthesis-
Palavras-chave: dc.subjectCO oxidation under SO2 and water steam-
Palavras-chave: dc.subjectCobalto - Catalisadores-
Palavras-chave: dc.subjectSíntese de SBA-15-
Palavras-chave: dc.subjectSíntese One-pot-
Palavras-chave: dc.subjectOxidação de CO-
Título: dc.titleMolybdenum-promoted cobalt supported on SBA-15: Steam and sulfur dioxide stable catalyst for CO oxidation-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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