Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s11671-008-9135-3 http://hdl.handle.net/11449/25342 |
Resumo: | Nanoparticles of tin oxide, doped with Ce and Y, were prepared using the polymeric precursor method. The structural variations of the tin oxide nanoparticles were characterized by means of nitrogen physisorption, carbon dioxide chemisorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The synthesized samples, undoped and doped with the rare earths, were used to promote the ethanol steam reforming reaction. The SnO2-based nanoparticles were shown to be active catalysts for the ethanol steam reforming. The surface properties, such as surface area, basicity/base strength distribution, and catalytic activity/selectivity, were influenced by the rare earth doping of SnO2 and also by the annealing temperatures. Doping led to chemical and micro-structural variations at the surface of the SnO2 particles. Changes in the catalytic properties of the samples, such as selectivity toward ethylene, may be ascribed to different dopings and annealing temperatures. |
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Repositório Institucional da UNESP |
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Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxidetin oxiderare earthnanocatalystsethanol steam reformingbasic sitesNanoparticles of tin oxide, doped with Ce and Y, were prepared using the polymeric precursor method. The structural variations of the tin oxide nanoparticles were characterized by means of nitrogen physisorption, carbon dioxide chemisorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The synthesized samples, undoped and doped with the rare earths, were used to promote the ethanol steam reforming reaction. The SnO2-based nanoparticles were shown to be active catalysts for the ethanol steam reforming. The surface properties, such as surface area, basicity/base strength distribution, and catalytic activity/selectivity, were influenced by the rare earth doping of SnO2 and also by the annealing temperatures. Doping led to chemical and micro-structural variations at the surface of the SnO2 particles. Changes in the catalytic properties of the samples, such as selectivity toward ethylene, may be ascribed to different dopings and annealing temperatures.Univ Estadual Paulista, Inst Quim Araraquara, Dept Bioquim Tecnol Quim, BR-14801907 Araraquara, SP, BrazilUniv Fed Santa Catarina, Dept Quim, BR-88040900 Florianopolis, SC, BrazilUniv Fed Ceara, Dept Quim Analit & Fis Quim, BR-60451970 Fortaleza, CE, BrazilUniv Fed Pelotas, Dept Quim Analit & Inorgan, BR-96010900 Capao do Leao, RS, BrazilUniv Fed São Paulo, Dept Quim, BR-13560905 Sao Carlos, SP, BrazilUniv Estadual Paulista, Inst Quim Araraquara, Dept Bioquim Tecnol Quim, BR-14801907 Araraquara, SP, BrazilSpringerUniversidade Estadual Paulista (Unesp)Universidade Federal de Santa Catarina (UFSC)Universidade Federal do Ceará (UFC)Universidade Federal de Pelotas (UFPEL)Universidade Federal de São Paulo (UNIFESP)Fajardo, Humberto V. [UNESP]Longo, Elson [UNESP]Probst, Luiz F. D.Valentini, AntoninhoCarreno, Neftali L. V.Nunes, Michael R.Maciel, Adeilton P.Leite, Edson R.2014-05-20T14:17:49Z2014-05-20T14:17:49Z2008-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article194-199application/pdfhttp://dx.doi.org/10.1007/s11671-008-9135-3Nanoscale Research Letters. New York: Springer, v. 3, n. 5, p. 194-199, 2008.1931-7573http://hdl.handle.net/11449/2534210.1007/s11671-008-9135-3WOS:000257381500004WOS000257381500004.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengNanoscale Research Letters0,713info:eu-repo/semantics/openAccess2023-11-13T06:13:16Zoai:repositorio.unesp.br:11449/25342Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:35:15.675005Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide |
title |
Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide |
spellingShingle |
Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide Fajardo, Humberto V. [UNESP] tin oxide rare earth nanocatalysts ethanol steam reforming basic sites |
title_short |
Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide |
title_full |
Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide |
title_fullStr |
Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide |
title_full_unstemmed |
Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide |
title_sort |
Influence of rare earth doping on the structural and catalytic properties of nanostructured tin oxide |
author |
Fajardo, Humberto V. [UNESP] |
author_facet |
Fajardo, Humberto V. [UNESP] Longo, Elson [UNESP] Probst, Luiz F. D. Valentini, Antoninho Carreno, Neftali L. V. Nunes, Michael R. Maciel, Adeilton P. Leite, Edson R. |
author_role |
author |
author2 |
Longo, Elson [UNESP] Probst, Luiz F. D. Valentini, Antoninho Carreno, Neftali L. V. Nunes, Michael R. Maciel, Adeilton P. Leite, Edson R. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de Santa Catarina (UFSC) Universidade Federal do Ceará (UFC) Universidade Federal de Pelotas (UFPEL) Universidade Federal de São Paulo (UNIFESP) |
dc.contributor.author.fl_str_mv |
Fajardo, Humberto V. [UNESP] Longo, Elson [UNESP] Probst, Luiz F. D. Valentini, Antoninho Carreno, Neftali L. V. Nunes, Michael R. Maciel, Adeilton P. Leite, Edson R. |
dc.subject.por.fl_str_mv |
tin oxide rare earth nanocatalysts ethanol steam reforming basic sites |
topic |
tin oxide rare earth nanocatalysts ethanol steam reforming basic sites |
description |
Nanoparticles of tin oxide, doped with Ce and Y, were prepared using the polymeric precursor method. The structural variations of the tin oxide nanoparticles were characterized by means of nitrogen physisorption, carbon dioxide chemisorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The synthesized samples, undoped and doped with the rare earths, were used to promote the ethanol steam reforming reaction. The SnO2-based nanoparticles were shown to be active catalysts for the ethanol steam reforming. The surface properties, such as surface area, basicity/base strength distribution, and catalytic activity/selectivity, were influenced by the rare earth doping of SnO2 and also by the annealing temperatures. Doping led to chemical and micro-structural variations at the surface of the SnO2 particles. Changes in the catalytic properties of the samples, such as selectivity toward ethylene, may be ascribed to different dopings and annealing temperatures. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-05-01 2014-05-20T14:17:49Z 2014-05-20T14:17:49Z |
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://dx.doi.org/10.1007/s11671-008-9135-3 Nanoscale Research Letters. New York: Springer, v. 3, n. 5, p. 194-199, 2008. 1931-7573 http://hdl.handle.net/11449/25342 10.1007/s11671-008-9135-3 WOS:000257381500004 WOS000257381500004.pdf |
url |
http://dx.doi.org/10.1007/s11671-008-9135-3 http://hdl.handle.net/11449/25342 |
identifier_str_mv |
Nanoscale Research Letters. New York: Springer, v. 3, n. 5, p. 194-199, 2008. 1931-7573 10.1007/s11671-008-9135-3 WOS:000257381500004 WOS000257381500004.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Nanoscale Research Letters 0,713 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
194-199 application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1808128831001722880 |