Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions

Novel Pt catalysts supported on undoped and N-doped (1% N, w) carbons with well interconnected and nanostructured mesoporosity (Vmesopore = 0.65 cm3 g−1, SEXT = 730 m2 g−1) were prepared and tested in the hydrodechlorination of 4-chlorophenol in water at 30–70 °C. The growth of Pt nanoparticles was...

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Autores: Ruiz-García, C., Heras Muñoz, Francisco, Calvo, L., Alonso Morales, Noelia, Rodríguez Jiménez, Juan José, Gilarranz Redondo, Miguel Ángel
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/699981
Acceso en línea:http://hdl.handle.net/10486/699981
https://dx.doi.org/10.1016/j.apcatb.2018.07.054
Access Level:acceso abierto
Palabra clave:Doped carbon
Hydrodechlorination
Mesoporous carbon
Pt nanoparticles
Water treatment
Química
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spelling Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactionsRuiz-García, C.Heras Muñoz, FranciscoCalvo, L.Alonso Morales, NoeliaRodríguez Jiménez, Juan JoséGilarranz Redondo, Miguel ÁngelDoped carbonHydrodechlorinationMesoporous carbonPt nanoparticlesWater treatmentQuímicaNovel Pt catalysts supported on undoped and N-doped (1% N, w) carbons with well interconnected and nanostructured mesoporosity (Vmesopore = 0.65 cm3 g−1, SEXT = 730 m2 g−1) were prepared and tested in the hydrodechlorination of 4-chlorophenol in water at 30–70 °C. The growth of Pt nanoparticles was achieved using incipient wetness impregnation and a modified colloidal synthesis. Total conversion of 4chlorophenol and 100% selectivity to cyclohexanol was achieved. The remarkable activity in the hydrogenation of the phenol resulting from hydrodechlorination has not been reported before with Pt catalysts and it is of high interest because it maximizes detoxification. When the Pt NPs were synthesized by incipient wetness impregnation some influence of the N-doping of the support was observed in the size and electronic state of the NPs. However, highly reproducible Pt NPs were prepared by in situ colloidal synthesis regardless the nature of the support. In this last case similar activity was observed for the catalysts with undoped and N-doped carbon support, although the activity increased more with temperature for the later. Apparent activation energies of 15–25 kJ mol−1 were obtained for the disappearance of 4-chlorophenolThe authors also thank to Hexion Speciality Chemicals Iberica S.A. for providing the resol resin Bakelite®PF9934 FL. The authors thank financial support (CTQ2012-32821, CTQ2015-65491_R) and C. Ruiz-García for PhD grant (BES-2013-066085) to MINECOElsevierDepartamento de Ingeniería QuímicaFacultad de CienciasUAM. Departamento de Ingeniería Química20182018-07-23research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/699981https://dx.doi.org/10.1016/j.apcatb.2018.07.054reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6999812026-06-23T12:46:27Z
dc.title.none.fl_str_mv Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions
title Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions
spellingShingle Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions
Ruiz-García, C.
Doped carbon
Hydrodechlorination
Mesoporous carbon
Pt nanoparticles
Water treatment
Química
title_short Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions
title_full Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions
title_fullStr Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions
title_full_unstemmed Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions
title_sort Platinum and N-doped carbon nanostructures as catalysts in hydrodechlorination reactions
dc.creator.none.fl_str_mv Ruiz-García, C.
Heras Muñoz, Francisco
Calvo, L.
Alonso Morales, Noelia
Rodríguez Jiménez, Juan José
Gilarranz Redondo, Miguel Ángel
author Ruiz-García, C.
author_facet Ruiz-García, C.
Heras Muñoz, Francisco
Calvo, L.
Alonso Morales, Noelia
Rodríguez Jiménez, Juan José
Gilarranz Redondo, Miguel Ángel
author_role author
author2 Heras Muñoz, Francisco
Calvo, L.
Alonso Morales, Noelia
Rodríguez Jiménez, Juan José
Gilarranz Redondo, Miguel Ángel
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Química
Facultad de Ciencias
UAM. Departamento de Ingeniería Química
dc.subject.none.fl_str_mv Doped carbon
Hydrodechlorination
Mesoporous carbon
Pt nanoparticles
Water treatment
Química
topic Doped carbon
Hydrodechlorination
Mesoporous carbon
Pt nanoparticles
Water treatment
Química
description Novel Pt catalysts supported on undoped and N-doped (1% N, w) carbons with well interconnected and nanostructured mesoporosity (Vmesopore = 0.65 cm3 g−1, SEXT = 730 m2 g−1) were prepared and tested in the hydrodechlorination of 4-chlorophenol in water at 30–70 °C. The growth of Pt nanoparticles was achieved using incipient wetness impregnation and a modified colloidal synthesis. Total conversion of 4chlorophenol and 100% selectivity to cyclohexanol was achieved. The remarkable activity in the hydrogenation of the phenol resulting from hydrodechlorination has not been reported before with Pt catalysts and it is of high interest because it maximizes detoxification. When the Pt NPs were synthesized by incipient wetness impregnation some influence of the N-doping of the support was observed in the size and electronic state of the NPs. However, highly reproducible Pt NPs were prepared by in situ colloidal synthesis regardless the nature of the support. In this last case similar activity was observed for the catalysts with undoped and N-doped carbon support, although the activity increased more with temperature for the later. Apparent activation energies of 15–25 kJ mol−1 were obtained for the disappearance of 4-chlorophenol
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-07-23
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/699981
https://dx.doi.org/10.1016/j.apcatb.2018.07.054
url http://hdl.handle.net/10486/699981
https://dx.doi.org/10.1016/j.apcatb.2018.07.054
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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