Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading

Cu/ZnO catalysts have been widely studied for the hydrogenation of carbon dioxide to methanol at atmospheric pressure. In the work described here, several interesting issues are highlighted that have rarely been considered previously. An extensive study of the influence of the calcination and reduct...

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Autores: Díez Ramírez, Javier, Dorado Fernández, Fernando, Osa Puebla, Ana Raquel de la, Valverde, Jose Luis, Sánchez Paredes, Paula
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/29703
Acceso en línea:http://hdl.handle.net/10578/29703
Access Level:acceso abierto
Palabra clave:Oxides
Alcohols
Copper
Redox reactions
Catalysts
Óxidos
Alcoholes
Cobre
Reacciones redox
Catalizadores
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spelling Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal LoadingDíez Ramírez, JavierDorado Fernández, FernandoOsa Puebla, Ana Raquel de laValverde, Jose LuisSánchez Paredes, PaulaOxidesAlcoholsCopperRedox reactionsCatalystsÓxidosAlcoholesCobreReacciones redoxCatalizadoresCu/ZnO catalysts have been widely studied for the hydrogenation of carbon dioxide to methanol at atmospheric pressure. In the work described here, several interesting issues are highlighted that have rarely been considered previously. An extensive study of the influence of the calcination and reduction temperatures and the metal loading was carried out. The best conditions found for catalyst preparation were calcination at 350 °C and reduction at 200 °C. The role of the different oxidation states of copper (Cu2+, Cu1+, and Cu0) was proven in the methane and methanol formation. CuZn alloy formation was observed when a reduction temperature of 400 °C was used. The use of this alloy led to higher methanol selectivity at higher temperatures (>200 °C). Finally, the metal loading study confirm the dual-site nature of the methanol synthesis mechanismLos catalizadores de Cu/ZnO han sido ampliamente estudiados para la hidrogenación de dióxido de carbono a metanol a presión atmosférica. En el trabajo descrito aquí, se destacan varios temas interesantes que rara vez se han considerado anteriormente. Se llevó a cabo un extenso estudio de la influencia de las temperaturas de calcinación y reducción y la carga de metal. Las mejores condiciones encontradas para la preparación del catalizador fueron la calcinación a 350 °C y la reducción a 200 °C. El papel de los diferentes estados de oxidación del cobre (Cu 2+ , Cu 1+ y Cu 0) fue probado en la formación de metano y metanol. Se observó la formación de aleaciones de CuZn cuando se utilizó una temperatura de reducción de 400 °C. El uso de esta aleación condujo a una mayor selectividad de metanol a temperaturas más altas (>200 °C). Finalmente, el estudio de carga de metal confirma la naturaleza de doble sitio del mecanismo de síntesis de metanol.ACS Publications202220222017info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10578/29703reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/297032026-05-27T07:36:41Z
dc.title.none.fl_str_mv Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading
title Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading
spellingShingle Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading
Díez Ramírez, Javier
Oxides
Alcohols
Copper
Redox reactions
Catalysts
Óxidos
Alcoholes
Cobre
Reacciones redox
Catalizadores
title_short Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading
title_full Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading
title_fullStr Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading
title_full_unstemmed Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading
title_sort Hydrogenation of CO2 to Methanol at Atmospheric Pressure over Cu/ZnO Catalysts: Influence of the Calcination, Reduction, and Metal Loading
dc.creator.none.fl_str_mv Díez Ramírez, Javier
Dorado Fernández, Fernando
Osa Puebla, Ana Raquel de la
Valverde, Jose Luis
Sánchez Paredes, Paula
author Díez Ramírez, Javier
author_facet Díez Ramírez, Javier
Dorado Fernández, Fernando
Osa Puebla, Ana Raquel de la
Valverde, Jose Luis
Sánchez Paredes, Paula
author_role author
author2 Dorado Fernández, Fernando
Osa Puebla, Ana Raquel de la
Valverde, Jose Luis
Sánchez Paredes, Paula
author2_role author
author
author
author
dc.subject.none.fl_str_mv Oxides
Alcohols
Copper
Redox reactions
Catalysts
Óxidos
Alcoholes
Cobre
Reacciones redox
Catalizadores
topic Oxides
Alcohols
Copper
Redox reactions
Catalysts
Óxidos
Alcoholes
Cobre
Reacciones redox
Catalizadores
description Cu/ZnO catalysts have been widely studied for the hydrogenation of carbon dioxide to methanol at atmospheric pressure. In the work described here, several interesting issues are highlighted that have rarely been considered previously. An extensive study of the influence of the calcination and reduction temperatures and the metal loading was carried out. The best conditions found for catalyst preparation were calcination at 350 °C and reduction at 200 °C. The role of the different oxidation states of copper (Cu2+, Cu1+, and Cu0) was proven in the methane and methanol formation. CuZn alloy formation was observed when a reduction temperature of 400 °C was used. The use of this alloy led to higher methanol selectivity at higher temperatures (>200 °C). Finally, the metal loading study confirm the dual-site nature of the methanol synthesis mechanism
publishDate 2017
dc.date.none.fl_str_mv 2017
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10578/29703
url http://hdl.handle.net/10578/29703
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv ACS Publications
publisher.none.fl_str_mv ACS Publications
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869415366676971520
score 15.300719

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