Hydrogenation of nitrobenzene on Au/ZrO2 catalysts

Autores
Gómez, Samuel; Torres, Cecilia; García Fierro, José Luis; Apesteguia, Carlos Rodolfo; Reyes, Patricio
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The hydrogenation of nitrobenzene at 298K and pressure of 40 bar of H2 over zirconia supported Au catalysts has been studied. Three different procedures were used to prepare 1wt% of Au/ZrO2 catalysts: i) An impregnation method using HAuCl4 as gold precursor ii)Depositation precipitation of Au nanoparticles generated in the presence of urea and iii) Deposition of Gold nanoparticles generated in presence of cetryltrimethylammonium bromide (CTMABR) as surfactant. The catalysts were characterized by nitrogen adsorption-desorption isotherms at 77 K, XRD, TEM and XPS techniques. The reactions were carried out in a stainless steel batch reactor using ethanol as solvent. The catalysts exhibits a higher selectivity to aniline, with low accumulation of intermediate products. The kinetic study displayed orders 1 respect to hydrogen pressure and to the substrate concentration (nitrobenzene), and the activation energy was 67.2 KJ/mol
Fil: Gómez, Samuel. Universidad de Concepción; Chile
Fil: Torres, Cecilia. Universidad de Concepción; Chile
Fil: García Fierro, José Luis. Instituto de Catálisis y Petroleoquímica; España
Fil: Apesteguia, Carlos Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Reyes, Patricio. Universidad de Concepción; Chile
Materia
Nitrobenzene
Hydrogenation
Au catalysts
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/52997
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/52997
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hydrogenation of nitrobenzene on Au/ZrO2 catalystsGómez, SamuelTorres, CeciliaGarcía Fierro, José LuisApesteguia, Carlos RodolfoReyes, PatricioNitrobenzeneHydrogenationAu catalystshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The hydrogenation of nitrobenzene at 298K and pressure of 40 bar of H2 over zirconia supported Au catalysts has been studied. Three different procedures were used to prepare 1wt% of Au/ZrO2 catalysts: i) An impregnation method using HAuCl4 as gold precursor ii)Depositation precipitation of Au nanoparticles generated in the presence of urea and iii) Deposition of Gold nanoparticles generated in presence of cetryltrimethylammonium bromide (CTMABR) as surfactant. The catalysts were characterized by nitrogen adsorption-desorption isotherms at 77 K, XRD, TEM and XPS techniques. The reactions were carried out in a stainless steel batch reactor using ethanol as solvent. The catalysts exhibits a higher selectivity to aniline, with low accumulation of intermediate products. The kinetic study displayed orders 1 respect to hydrogen pressure and to the substrate concentration (nitrobenzene), and the activation energy was 67.2 KJ/molFil: Gómez, Samuel. Universidad de Concepción; ChileFil: Torres, Cecilia. Universidad de Concepción; ChileFil: García Fierro, José Luis. Instituto de Catálisis y Petroleoquímica; EspañaFil: Apesteguia, Carlos Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Reyes, Patricio. Universidad de Concepción; ChileSociedad Chilena de Química2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/52997Gómez, Samuel; Torres, Cecilia; García Fierro, José Luis; Apesteguia, Carlos Rodolfo; Reyes, Patricio; Hydrogenation of nitrobenzene on Au/ZrO2 catalysts; Sociedad Chilena de Química; Journal of the Chilean Chemical Society; 57; 2; 6-2012; 1194-11980717-93240717-9707CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4067/S0717-97072012000200029info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:40Zoai:ri.conicet.gov.ar:11336/52997instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:37:40.629CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hydrogenation of nitrobenzene on Au/ZrO2 catalysts
title Hydrogenation of nitrobenzene on Au/ZrO2 catalysts
spellingShingle Hydrogenation of nitrobenzene on Au/ZrO2 catalysts
Gómez, Samuel
Nitrobenzene
Hydrogenation
Au catalysts
title_short Hydrogenation of nitrobenzene on Au/ZrO2 catalysts
title_full Hydrogenation of nitrobenzene on Au/ZrO2 catalysts
title_fullStr Hydrogenation of nitrobenzene on Au/ZrO2 catalysts
title_full_unstemmed Hydrogenation of nitrobenzene on Au/ZrO2 catalysts
title_sort Hydrogenation of nitrobenzene on Au/ZrO2 catalysts
dc.creator.none.fl_str_mv Gómez, Samuel
Torres, Cecilia
García Fierro, José Luis
Apesteguia, Carlos Rodolfo
Reyes, Patricio
author Gómez, Samuel
author_facet Gómez, Samuel
Torres, Cecilia
García Fierro, José Luis
Apesteguia, Carlos Rodolfo
Reyes, Patricio
author_role author
author2 Torres, Cecilia
García Fierro, José Luis
Apesteguia, Carlos Rodolfo
Reyes, Patricio
author2_role author
author
author
author
dc.subject.none.fl_str_mv Nitrobenzene
Hydrogenation
Au catalysts
topic Nitrobenzene
Hydrogenation
Au catalysts
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The hydrogenation of nitrobenzene at 298K and pressure of 40 bar of H2 over zirconia supported Au catalysts has been studied. Three different procedures were used to prepare 1wt% of Au/ZrO2 catalysts: i) An impregnation method using HAuCl4 as gold precursor ii)Depositation precipitation of Au nanoparticles generated in the presence of urea and iii) Deposition of Gold nanoparticles generated in presence of cetryltrimethylammonium bromide (CTMABR) as surfactant. The catalysts were characterized by nitrogen adsorption-desorption isotherms at 77 K, XRD, TEM and XPS techniques. The reactions were carried out in a stainless steel batch reactor using ethanol as solvent. The catalysts exhibits a higher selectivity to aniline, with low accumulation of intermediate products. The kinetic study displayed orders 1 respect to hydrogen pressure and to the substrate concentration (nitrobenzene), and the activation energy was 67.2 KJ/mol
Fil: Gómez, Samuel. Universidad de Concepción; Chile
Fil: Torres, Cecilia. Universidad de Concepción; Chile
Fil: García Fierro, José Luis. Instituto de Catálisis y Petroleoquímica; España
Fil: Apesteguia, Carlos Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Reyes, Patricio. Universidad de Concepción; Chile
description The hydrogenation of nitrobenzene at 298K and pressure of 40 bar of H2 over zirconia supported Au catalysts has been studied. Three different procedures were used to prepare 1wt% of Au/ZrO2 catalysts: i) An impregnation method using HAuCl4 as gold precursor ii)Depositation precipitation of Au nanoparticles generated in the presence of urea and iii) Deposition of Gold nanoparticles generated in presence of cetryltrimethylammonium bromide (CTMABR) as surfactant. The catalysts were characterized by nitrogen adsorption-desorption isotherms at 77 K, XRD, TEM and XPS techniques. The reactions were carried out in a stainless steel batch reactor using ethanol as solvent. The catalysts exhibits a higher selectivity to aniline, with low accumulation of intermediate products. The kinetic study displayed orders 1 respect to hydrogen pressure and to the substrate concentration (nitrobenzene), and the activation energy was 67.2 KJ/mol
publishDate 2012
dc.date.none.fl_str_mv 2012-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/52997
Gómez, Samuel; Torres, Cecilia; García Fierro, José Luis; Apesteguia, Carlos Rodolfo; Reyes, Patricio; Hydrogenation of nitrobenzene on Au/ZrO2 catalysts; Sociedad Chilena de Química; Journal of the Chilean Chemical Society; 57; 2; 6-2012; 1194-1198
0717-9324
0717-9707
CONICET Digital
CONICET
url http://hdl.handle.net/11336/52997
identifier_str_mv Gómez, Samuel; Torres, Cecilia; García Fierro, José Luis; Apesteguia, Carlos Rodolfo; Reyes, Patricio; Hydrogenation of nitrobenzene on Au/ZrO2 catalysts; Sociedad Chilena de Química; Journal of the Chilean Chemical Society; 57; 2; 6-2012; 1194-1198
0717-9324
0717-9707
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4067/S0717-97072012000200029
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Sociedad Chilena de Química
publisher.none.fl_str_mv Sociedad Chilena de Química
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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