Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques

Fischer Tropsch's reaction, known from 1925, receives special attention nowadays due to its key role in the CO or biomass valorization to liquid fuels and chemicals. Several aspects on the exact mechanism or the role of water in this reaction are not yet completely clear. Formyl species, HCO, h...

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Detalles Bibliográficos
Autores: Romero-Sarria, Francisca, Bobadilla, Luis F., Jiménez Barrera, Elena M., Odriozola, José Antonio
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::0f3ea06d67f6bbec1c37d66a2c60e2f8
Acceso en línea:http://hdl.handle.net/10261/223086
Access Level:acceso abierto
Palabra clave:Fischer-Tropsch
Operando DRIFTS-MS
Reaction mechanism
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spelling Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniquesRomero-Sarria, FranciscaBobadilla, Luis F.Jiménez Barrera, Elena M.Odriozola, José AntonioFischer-TropschOperando DRIFTS-MSReaction mechanismFischer Tropsch's reaction, known from 1925, receives special attention nowadays due to its key role in the CO or biomass valorization to liquid fuels and chemicals. Several aspects on the exact mechanism or the role of water in this reaction are not yet completely clear. Formyl species, HCO, have been proposed as the most probable reaction intermediate, but they have never been observed under operation conditions closed to the real ones. In this work, using DRIFTS-MS operando techniques, HCO intermediates are detected under a H/CO flow and 200 °C. IR bands at 2900 cm and 1440 cm attributed to ν(C–H) and δ(HCO) vibrations modes characterize these species. Evolution of these bands with the reaction time evidences its high reactivity with OH groups, which explains the positive effect of water on the CO conversion previously observed.Elsevier BVConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/223086reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.apcatb.2020.119032Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::0f3ea06d67f6bbec1c37d66a2c60e2f82026-05-22T06:33:51Z
dc.title.none.fl_str_mv Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques
title Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques
spellingShingle Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques
Romero-Sarria, Francisca
Fischer-Tropsch
Operando DRIFTS-MS
Reaction mechanism
title_short Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques
title_full Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques
title_fullStr Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques
title_full_unstemmed Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques
title_sort Experimental evidence of HCO species as intermediate in the fischer tropsch reaction using operando techniques
dc.creator.none.fl_str_mv Romero-Sarria, Francisca
Bobadilla, Luis F.
Jiménez Barrera, Elena M.
Odriozola, José Antonio
author Romero-Sarria, Francisca
author_facet Romero-Sarria, Francisca
Bobadilla, Luis F.
Jiménez Barrera, Elena M.
Odriozola, José Antonio
author_role author
author2 Bobadilla, Luis F.
Jiménez Barrera, Elena M.
Odriozola, José Antonio
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Fischer-Tropsch
Operando DRIFTS-MS
Reaction mechanism
topic Fischer-Tropsch
Operando DRIFTS-MS
Reaction mechanism
description Fischer Tropsch's reaction, known from 1925, receives special attention nowadays due to its key role in the CO or biomass valorization to liquid fuels and chemicals. Several aspects on the exact mechanism or the role of water in this reaction are not yet completely clear. Formyl species, HCO, have been proposed as the most probable reaction intermediate, but they have never been observed under operation conditions closed to the real ones. In this work, using DRIFTS-MS operando techniques, HCO intermediates are detected under a H/CO flow and 200 °C. IR bands at 2900 cm and 1440 cm attributed to ν(C–H) and δ(HCO) vibrations modes characterize these species. Evolution of these bands with the reaction time evidences its high reactivity with OH groups, which explains the positive effect of water on the CO conversion previously observed.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/223086
url http://hdl.handle.net/10261/223086
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.apcatb.2020.119032
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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