In Situ Xanes Study Of Cobalt In Co-ce-al Catalyst Applied To Steam Reforming Of Ethanol Reaction

dc.creatorPastore de Lima
dc.creatorArthur E.; de Oliveira
dc.creatorDaniela C.
dc.date2017
dc.dateabr
dc.date2017-11-13T13:58:07Z
dc.date2017-11-13T13:58:07Z
dc.date.accessioned2018-03-29T06:11:32Z
dc.date.available2018-03-29T06:11:32Z
dc.identifierCatalysis Today. Elsevier Science Bv, v. 283, p. 104 - 109, 2017.
dc.identifier0920-5861
dc.identifier1873-4308
dc.identifierWOS:000393244700010
dc.identifier10.1016/j.cattod.2016.02.029
dc.identifierIn situ XANES study of Cobalt in Co-Ce-Al catalyst applied to Steam Reforming of Ethanol reaction
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/330203
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1367228
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionThe 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.
dc.description283
dc.description104
dc.description109
dc.descriptionFAPESP [proc. 2013/18062-2, 2014/2666-1]
dc.descriptionBrazilian Synchrotron Light Laboratory (LNLS) at CNPEM
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description5th International Conference on Operando Spectroscopy (Operando)
dc.descriptionMAY, 2015
dc.descriptionDeauville, FRANCE
dc.languageEnglish
dc.publisherElsevier Science BV
dc.publisherAmsterdam
dc.relationCatalysis Today
dc.rightsfechado
dc.sourceWOS
dc.subjectHydrogen
dc.subjectEthanol
dc.subjectCeria
dc.subjectCatalyst
dc.subjectCobalt
dc.subjectXanes
dc.titleIn Situ Xanes Study Of Cobalt In Co-ce-al Catalyst Applied To Steam Reforming Of Ethanol Reaction
dc.typeActas de congresos


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