Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane

Detalhes bibliográficos
Autor(a) principal: Valentini, A.
Data de Publicação: 2004
Outros Autores: Carreño, N. L. V., Leite, E. R., Gonçalves, R. F., Soledade, L. E. B., Maniette, Y., Longo, Elson [UNESP], Probst, L. F. D.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.scielo.org.ar/scielo.php?pid=S0327-07932004000300005&script=sci_arttext
http://hdl.handle.net/11449/67800
Resumo: The CO2 reforming of CH4 was carried out over Ni catalysts supported on γ-Al2O3 and CeO 2-promoted γ-Al2O3. The catalysts were characterized by means of surface area measurements, TPR, CO2 and H2 chemisorption, XRD, SEM, and TEM. The CeO2 addition promoted an increase of catalytic activity and stability. The improvement in the resistance to carbon deposition is attributed to the highest CO2 adsorption presented by the CeO2 addition. The catalytic behavior presented by the samples, with a different CH4/CO2 ratio used, points to the CH4 decomposition reaction as the main source of carbon deposition.
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spelling Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methaneCarbon formationCeO2Dry reformingMethaneSyngasAluminaCarbon dioxideCeriumChemisorptionDepositionNickelReforming reactionsScanning electron microscopyTemperature programmed desorptionTransmission electron microscopyX ray diffraction analysisCarbon formationsGreenhouse gasesCatalyst activityThe CO2 reforming of CH4 was carried out over Ni catalysts supported on γ-Al2O3 and CeO 2-promoted γ-Al2O3. The catalysts were characterized by means of surface area measurements, TPR, CO2 and H2 chemisorption, XRD, SEM, and TEM. The CeO2 addition promoted an increase of catalytic activity and stability. The improvement in the resistance to carbon deposition is attributed to the highest CO2 adsorption presented by the CeO2 addition. The catalytic behavior presented by the samples, with a different CH4/CO2 ratio used, points to the CH4 decomposition reaction as the main source of carbon deposition.Dto de Química Univ. Federal de Santa Catarina, CP 476, 88040-900 Florianópolis, SCCtro. Multidisciplinar de D. Dto de Química Univ. Federal de São Carlos, CP 676, 13560-905 São Carlos, SPInstituto de Química Univ. Estadual de São Paulo, CP 355, 14801-970 Araraquara, SPUniversidade Federal de Santa Catarina (UFSC)Universidade Federal de São Carlos (UFSCar)Universidade Estadual Paulista (Unesp)Valentini, A.Carreño, N. L. V.Leite, E. R.Gonçalves, R. F.Soledade, L. E. B.Maniette, Y.Longo, Elson [UNESP]Probst, L. F. D.2014-05-27T11:21:07Z2014-05-27T11:21:07Z2004-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article165-172application/pdfhttp://www.scielo.org.ar/scielo.php?pid=S0327-07932004000300005&script=sci_arttextLatin American Applied Research, v. 34, n. 3, p. 165-172, 2004.0327-0793http://hdl.handle.net/11449/67800S0327-079320040003000052-s2.0-31427345632-s2.0-3142734563.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLatin American Applied Research0.145info:eu-repo/semantics/openAccess2023-12-12T06:22:18Zoai:repositorio.unesp.br:11449/67800Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:09:46.901151Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
title Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
spellingShingle Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
Valentini, A.
Carbon formation
CeO2
Dry reforming
Methane
Syngas
Alumina
Carbon dioxide
Cerium
Chemisorption
Deposition
Nickel
Reforming reactions
Scanning electron microscopy
Temperature programmed desorption
Transmission electron microscopy
X ray diffraction analysis
Carbon formations
Greenhouse gases
Catalyst activity
title_short Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
title_full Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
title_fullStr Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
title_full_unstemmed Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
title_sort Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
author Valentini, A.
author_facet Valentini, A.
Carreño, N. L. V.
Leite, E. R.
Gonçalves, R. F.
Soledade, L. E. B.
Maniette, Y.
Longo, Elson [UNESP]
Probst, L. F. D.
author_role author
author2 Carreño, N. L. V.
Leite, E. R.
Gonçalves, R. F.
Soledade, L. E. B.
Maniette, Y.
Longo, Elson [UNESP]
Probst, L. F. D.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de Santa Catarina (UFSC)
Universidade Federal de São Carlos (UFSCar)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Valentini, A.
Carreño, N. L. V.
Leite, E. R.
Gonçalves, R. F.
Soledade, L. E. B.
Maniette, Y.
Longo, Elson [UNESP]
Probst, L. F. D.
dc.subject.por.fl_str_mv Carbon formation
CeO2
Dry reforming
Methane
Syngas
Alumina
Carbon dioxide
Cerium
Chemisorption
Deposition
Nickel
Reforming reactions
Scanning electron microscopy
Temperature programmed desorption
Transmission electron microscopy
X ray diffraction analysis
Carbon formations
Greenhouse gases
Catalyst activity
topic Carbon formation
CeO2
Dry reforming
Methane
Syngas
Alumina
Carbon dioxide
Cerium
Chemisorption
Deposition
Nickel
Reforming reactions
Scanning electron microscopy
Temperature programmed desorption
Transmission electron microscopy
X ray diffraction analysis
Carbon formations
Greenhouse gases
Catalyst activity
description The CO2 reforming of CH4 was carried out over Ni catalysts supported on γ-Al2O3 and CeO 2-promoted γ-Al2O3. The catalysts were characterized by means of surface area measurements, TPR, CO2 and H2 chemisorption, XRD, SEM, and TEM. The CeO2 addition promoted an increase of catalytic activity and stability. The improvement in the resistance to carbon deposition is attributed to the highest CO2 adsorption presented by the CeO2 addition. The catalytic behavior presented by the samples, with a different CH4/CO2 ratio used, points to the CH4 decomposition reaction as the main source of carbon deposition.
publishDate 2004
dc.date.none.fl_str_mv 2004-07-01
2014-05-27T11:21:07Z
2014-05-27T11:21:07Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.scielo.org.ar/scielo.php?pid=S0327-07932004000300005&script=sci_arttext
Latin American Applied Research, v. 34, n. 3, p. 165-172, 2004.
0327-0793
http://hdl.handle.net/11449/67800
S0327-07932004000300005
2-s2.0-3142734563
2-s2.0-3142734563.pdf
url http://www.scielo.org.ar/scielo.php?pid=S0327-07932004000300005&script=sci_arttext
http://hdl.handle.net/11449/67800
identifier_str_mv Latin American Applied Research, v. 34, n. 3, p. 165-172, 2004.
0327-0793
S0327-07932004000300005
2-s2.0-3142734563
2-s2.0-3142734563.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Latin American Applied Research
0.145
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 165-172
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129167373369344

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