Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFS |
Texto Completo: | https://ri.ufs.br/handle/riufs/1178 |
Resumo: | Este trabalho descreve um estudo sobre a síntese da perovsquita LaNiO3 via método do gel proteico, variando quantidade de colágeno e sobre a atividade catalítica de LaNiO3 e LaNiO3/Al2O3 na produção de gás de síntese (CO + H2). Os padrões de difração de raios X revelaram a formação da estrutura perovsquita em todas as amostras preparadas pelo método de síntese do gel protéico, variando a quantidade de colágeno e após calcinações a 700 ºC por 2 h. O catalisador LaNiO3/Al2O3 preparado pelo método de impregnação mostrou picos de difração nos difratogramas atribuídos a LaNiO3 e ao suporte (Al2O3). Este catalisador apresentou: área superficial específica de 46,1 m2 g-1, dois picos de redução no perfil de redução à temperatura programada (RTP) e 46% de conversão do metano (através da oxidação parcial do metano utilizando oxigênio) depois de 18 h de reação. _________________________________________________________________________________________ ABSTRACT: This work describes a study on the synthesis of LaNiO3 perovskites via the modified proteic gel method, varying collagen content and on the catalytic activity of LaNiO3 and LaNiO3/Al2O3 in the syngas (CO + H2) production. X-ray diffraction patterns revealed the formation of perovskite structure in all samples prepared by proteic gel synthesis method, varying collagen content and after calcinations at 700 ºC for 2 h. LaNiO3/Al2O3 catalyst prepared by the impregnation method showed diffraction peaks due to the perovskite structure and to the support (Al2O3). This catalyst presented: specific surface of 46.1 m2 g-1, two reduction peaks in the temperature programmed reduction (TPR) profile and 46% of methane conversion (by the partial oxidation of methane using oxygen) after 18 h of reaction. |
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Souza, Anne Michelle Garrido PedrosaSantos, José Carlos dosSouza, Marcelo José Barros deRuiz, Juan A. C.Melo, Dulce Maria AraújoMesquita, Maria Eliane2014-09-09T22:17:31Z2014-09-09T22:17:31Z2012-10SANTOS, J. C. et al. Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production. Journal of the Brazilian Chemical Society, São Paulo, v. 23, n. 10, p. 1858-1862, oct. 2012. Disponível em: <http://dx.doi.org/10.1590/S0103-50532012005000052>. Acesso em: 9 set. 2014.0103-5053https://ri.ufs.br/handle/riufs/1178Creative Commons Attribution LicenseEste trabalho descreve um estudo sobre a síntese da perovsquita LaNiO3 via método do gel proteico, variando quantidade de colágeno e sobre a atividade catalítica de LaNiO3 e LaNiO3/Al2O3 na produção de gás de síntese (CO + H2). Os padrões de difração de raios X revelaram a formação da estrutura perovsquita em todas as amostras preparadas pelo método de síntese do gel protéico, variando a quantidade de colágeno e após calcinações a 700 ºC por 2 h. O catalisador LaNiO3/Al2O3 preparado pelo método de impregnação mostrou picos de difração nos difratogramas atribuídos a LaNiO3 e ao suporte (Al2O3). Este catalisador apresentou: área superficial específica de 46,1 m2 g-1, dois picos de redução no perfil de redução à temperatura programada (RTP) e 46% de conversão do metano (através da oxidação parcial do metano utilizando oxigênio) depois de 18 h de reação. _________________________________________________________________________________________ ABSTRACT: This work describes a study on the synthesis of LaNiO3 perovskites via the modified proteic gel method, varying collagen content and on the catalytic activity of LaNiO3 and LaNiO3/Al2O3 in the syngas (CO + H2) production. X-ray diffraction patterns revealed the formation of perovskite structure in all samples prepared by proteic gel synthesis method, varying collagen content and after calcinations at 700 ºC for 2 h. LaNiO3/Al2O3 catalyst prepared by the impregnation method showed diffraction peaks due to the perovskite structure and to the support (Al2O3). This catalyst presented: specific surface of 46.1 m2 g-1, two reduction peaks in the temperature programmed reduction (TPR) profile and 46% of methane conversion (by the partial oxidation of methane using oxygen) after 18 h of reaction.Brazilian Chemical SocietyPerovskitas LaNiO3ColágenoProdução de gás de sínteseOxidação parcial do metanoSynthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas productioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessTHUMBNAILSynthesisOfLaNiO3.pdf.jpgSynthesisOfLaNiO3.pdf.jpgGenerated Thumbnailimage/jpeg1647https://ri.ufs.br/jspui/bitstream/riufs/1178/4/SynthesisOfLaNiO3.pdf.jpg5f9282034e910260c3575bfa4206d835MD54ORIGINALSynthesisOfLaNiO3.pdfSynthesisOfLaNiO3.pdfapplication/pdf422161https://ri.ufs.br/jspui/bitstream/riufs/1178/1/SynthesisOfLaNiO3.pdff26fbc713d8f9e059a94415918f5daa8MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://ri.ufs.br/jspui/bitstream/riufs/1178/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52TEXTSynthesisOfLaNiO3.pdf.txtSynthesisOfLaNiO3.pdf.txtExtracted texttext/plain19984https://ri.ufs.br/jspui/bitstream/riufs/1178/3/SynthesisOfLaNiO3.pdf.txt6d59f5f4059cba40019c4a99a07ec5e2MD53riufs/11782016-07-29 20:30:04.728oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2016-07-29T23:30:04Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false |
dc.title.pt_BR.fl_str_mv |
Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production |
title |
Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production |
spellingShingle |
Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production Souza, Anne Michelle Garrido Pedrosa Perovskitas LaNiO3 Colágeno Produção de gás de síntese Oxidação parcial do metano |
title_short |
Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production |
title_full |
Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production |
title_fullStr |
Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production |
title_full_unstemmed |
Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production |
title_sort |
Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production |
author |
Souza, Anne Michelle Garrido Pedrosa |
author_facet |
Souza, Anne Michelle Garrido Pedrosa Santos, José Carlos dos Souza, Marcelo José Barros de Ruiz, Juan A. C. Melo, Dulce Maria Araújo Mesquita, Maria Eliane |
author_role |
author |
author2 |
Santos, José Carlos dos Souza, Marcelo José Barros de Ruiz, Juan A. C. Melo, Dulce Maria Araújo Mesquita, Maria Eliane |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Souza, Anne Michelle Garrido Pedrosa Santos, José Carlos dos Souza, Marcelo José Barros de Ruiz, Juan A. C. Melo, Dulce Maria Araújo Mesquita, Maria Eliane |
dc.subject.por.fl_str_mv |
Perovskitas LaNiO3 Colágeno Produção de gás de síntese Oxidação parcial do metano |
topic |
Perovskitas LaNiO3 Colágeno Produção de gás de síntese Oxidação parcial do metano |
description |
Este trabalho descreve um estudo sobre a síntese da perovsquita LaNiO3 via método do gel proteico, variando quantidade de colágeno e sobre a atividade catalítica de LaNiO3 e LaNiO3/Al2O3 na produção de gás de síntese (CO + H2). Os padrões de difração de raios X revelaram a formação da estrutura perovsquita em todas as amostras preparadas pelo método de síntese do gel protéico, variando a quantidade de colágeno e após calcinações a 700 ºC por 2 h. O catalisador LaNiO3/Al2O3 preparado pelo método de impregnação mostrou picos de difração nos difratogramas atribuídos a LaNiO3 e ao suporte (Al2O3). Este catalisador apresentou: área superficial específica de 46,1 m2 g-1, dois picos de redução no perfil de redução à temperatura programada (RTP) e 46% de conversão do metano (através da oxidação parcial do metano utilizando oxigênio) depois de 18 h de reação. _________________________________________________________________________________________ ABSTRACT: This work describes a study on the synthesis of LaNiO3 perovskites via the modified proteic gel method, varying collagen content and on the catalytic activity of LaNiO3 and LaNiO3/Al2O3 in the syngas (CO + H2) production. X-ray diffraction patterns revealed the formation of perovskite structure in all samples prepared by proteic gel synthesis method, varying collagen content and after calcinations at 700 ºC for 2 h. LaNiO3/Al2O3 catalyst prepared by the impregnation method showed diffraction peaks due to the perovskite structure and to the support (Al2O3). This catalyst presented: specific surface of 46.1 m2 g-1, two reduction peaks in the temperature programmed reduction (TPR) profile and 46% of methane conversion (by the partial oxidation of methane using oxygen) after 18 h of reaction. |
publishDate |
2012 |
dc.date.issued.fl_str_mv |
2012-10 |
dc.date.accessioned.fl_str_mv |
2014-09-09T22:17:31Z |
dc.date.available.fl_str_mv |
2014-09-09T22:17:31Z |
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.citation.fl_str_mv |
SANTOS, J. C. et al. Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production. Journal of the Brazilian Chemical Society, São Paulo, v. 23, n. 10, p. 1858-1862, oct. 2012. Disponível em: <http://dx.doi.org/10.1590/S0103-50532012005000052>. Acesso em: 9 set. 2014. |
dc.identifier.uri.fl_str_mv |
https://ri.ufs.br/handle/riufs/1178 |
dc.identifier.issn.none.fl_str_mv |
0103-5053 |
dc.identifier.license.pt_BR.fl_str_mv |
Creative Commons Attribution License |
identifier_str_mv |
SANTOS, J. C. et al. Synthesis of LaNiO3 perovskite by the modified proteic gel method and study of catalytic properties in the syngas production. Journal of the Brazilian Chemical Society, São Paulo, v. 23, n. 10, p. 1858-1862, oct. 2012. Disponível em: <http://dx.doi.org/10.1590/S0103-50532012005000052>. Acesso em: 9 set. 2014. 0103-5053 Creative Commons Attribution License |
url |
https://ri.ufs.br/handle/riufs/1178 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Brazilian Chemical Society |
publisher.none.fl_str_mv |
Brazilian Chemical Society |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFS instname:Universidade Federal de Sergipe (UFS) instacron:UFS |
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Universidade Federal de Sergipe (UFS) |
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UFS |
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UFS |
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Repositório Institucional da UFS |
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Repositório Institucional da UFS |
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