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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authoremaildoliveira@lnls.brpt_BR
dc.typeCongressopt_BR
dc.titleIn Situ Xanes Study Of Cobalt In Co-ce-al Catalyst Applied To Steam Reforming Of Ethanol Reactionen
dc.contributor.authorPastore de Limapt_BR
dc.contributor.authorArthur E.; de Oliveirapt_BR
dc.contributor.authorDaniela C.pt_BR
unicamp.author[Pastore de Lima, Arthur E.] Univ Estadual Campinas, UNICAMP, Campinas, SP, Brazilpt_BR
unicamp.author.external[Pastore de Lima, Arthur E.pt_BR
unicamp.author.externalde Oliveira, Daniela C.] LNLS, Brazilian Synchrotron Light Lab, Caixa Postal 6192, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjectHydrogenen
dc.subjectEthanolen
dc.subjectCeriaen
dc.subjectCatalysten
dc.subjectCobalten
dc.subjectXanesen
dc.description.abstractThe effect of ceria in cobalt-ceria-alumina catalyst was studied using in situ X-ray near edge spectroscopy (XANES) at Co K-edge and Ce L-III-edge. The introduction of ceria in this catalyst resulted in a significant removal of Co from CoAl2O4 spinel phase to Co and COO phases. The Co K-edge revealed the symmetry changes in Co according to the temperature and atmosphere in reduction process. We also showed the stability of Co sites as well the oxidation state of ceria in operando steam reforming of ethanol (SRE) reaction. After reduction of Ce4+ to Ce3+, no significant changes were observed by XANES. Gas Chromatography (GC) analysis showed a high ethanol conversion at 500 degrees C, high hydrogen yield and low formation of undesired products as methane and ethylene. The results showed a Co/Ce/Al2O3 catalyst as promising material to be applied in hydrogen production in SRE reaction. (C) 2016 Elsevier B.V. All rights reserved.en
dc.relation.ispartofCatalysis Todaypt_BR
dc.publisherElsevier Science BVpt_BR
dc.publisherAmsterdampt_BR
dc.date.issued2017pt_BR
dc.date.monthofcirculationabrpt_BR
dc.identifier.citationCatalysis Today. Elsevier Science Bv, v. 283, p. 104 - 109, 2017.pt_BR
dc.language.isoEnglishpt_BR
dc.description.volume283pt_BR
dc.description.firstpage104pt_BR
dc.description.lastpage109pt_BR
dc.rightsfechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0920-5861pt_BR
dc.identifier.eissn1873-4308pt_BR
dc.identifier.wosidWOS:000393244700010pt_BR
dc.identifier.doi10.1016/j.cattod.2016.02.029pt_BR
dc.identifier.urlIn situ XANES study of Cobalt in Co-Ce-Al catalyst applied to Steam Reforming of Ethanol reactionpt_BR
dc.description.sponsorshipFAPESP [proc. 2013/18062-2, 2014/2666-1]pt_BR
dc.description.sponsorshipBrazilian Synchrotron Light Laboratory (LNLS) at CNPEMpt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.date.available2017-11-13T13:58:07Z-
dc.date.accessioned2017-11-13T13:58:07Z-
dc.description.provenanceMade available in DSpace on 2017-11-13T13:58:07Z (GMT). No. of bitstreams: 1 000393244700010.pdf: 1517038 bytes, checksum: 534d2c339dd37e0d8be3983bb5952e01 (MD5) Previous issue date: 2017en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/330203-
dc.description.conferencenome5th International Conference on Operando Spectroscopy (Operando)pt_BR
dc.description.conferencedateMAY, 2015pt_BR
dc.description.conferencelocationDeauville, FRANCEpt_BR
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