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Carbon xerogel supported noble metal catalysts for fine chemical applications

2008Comunicação em conferência Acesso aberto
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dc.contributor.authorMachado, Bruno
dc.contributor.authorGomes, Helder
dc.contributor.authorSerp, Philippe
dc.contributor.authorKalck, Philippe
dc.contributor.authorFigueiredo, José
dc.contributor.authorFaria, Joaquim
dc.date.accessioned2010-01-19T18:17:54Z
dc.date.available2010-01-19T18:17:54Z
dc.date.issued2008
dc.description.abstractCarbon xerogel, a mesoporous material, was produced by polycondensation of resorcinol and formaldehyde. A concentrated nitric acid solution was subsequently used to introduce high amounts of oxygenated groups on the surface. The carbon xerogel served as a support for Pt, Ir and Ru monometallic catalysts by using organometallic precursors. The catalysts were tested in the liquid-phase selective hydrogenation of cinnamaldehyde to cinnamyl alcohol. The introduction of surface groups was important to increase metal dispersion but proved to limit selectivity towards the unsaturated alcohol. After a thermal treatment at 973 K the catalysts showed excellent thermal stability and a narrow metal size distribution. Regarding the catalytic results measured at 50% conversion, Pt catalysts exhibited the highest selectivity to cinnamyl alcohol (73 %) followed by Ir with 65 % and finally Ru with only 32 %.pt
dc.identifier.citationMachado, Bruno; Gomes, Helder; Serp, Philippe; Kalck, Philippe; Figueiredo, José; Faria, Joaquim (2008). Carbon xerogel supported noble metal catalysts for fine chemical applications. In XXI Simpósio Ibero-americano de Catálise. Benalmadena, Málaga, Espanha. p. V107-V114pt
dc.identifier.urihttp://hdl.handle.net/10198/1324
dc.language.isoengpt
dc.relationContract of BM
dc.relationCatalisadores nanoestruturados para aplicações de engenharia química
dc.subjectCarbon xerogelpt
dc.subjectSurface chemistrypt
dc.subjectSelective hydrogenationpt
dc.subjectCinnamaldehydept
dc.titleCarbon xerogel supported noble metal catalysts for fine chemical applicationspt
dc.typeconference paper
dspace.entity.typePublication
oaire.awardNumberSFRH/BD/16565/2004
oaire.awardNumberPOCI/EQU/58252/2004
oaire.awardTitleContract of BM
oaire.awardTitleCatalisadores nanoestruturados para aplicações de engenharia química
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F16565%2F2004/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FEQU%2F58252%2F2004/PT
oaire.citation.conferencePlaceBenalmádena Costa, Málaga, Espanhapt
oaire.citation.endPageV-114pt
oaire.citation.startPageV-107pt
oaire.citation.titleXXI Simpósio Ibero-americano de Catálisept
oaire.fundingStreamSFRH
oaire.fundingStreamPOCI
person.familyNameGomes
person.givenNameHelder T.
person.identifier.ciencia-id6218-1E19-13EE
person.identifier.orcid0000-0001-6898-2408
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt
rcaap.typeconferenceObjectpt
relation.isAuthorOfPublication0eb96337-224a-4339-9918-334436fbbb99
relation.isAuthorOfPublication.latestForDiscovery0eb96337-224a-4339-9918-334436fbbb99
relation.isProjectOfPublication055fc313-4f99-4784-9dcb-542bf67bb04c
relation.isProjectOfPublication300d8f69-38b0-41ee-91bf-bd384b3dc31f
relation.isProjectOfPublication.latestForDiscovery300d8f69-38b0-41ee-91bf-bd384b3dc31f

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