Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst

Upgrading of waste dichloromethane to produce olefins has been performed by hydrodechlorination (HDC) using bimetallic catalysts consisting of Pd-Fe/CNT, Pd-Sn/CNT and Pd-Ag/CNT. Pd/CNT was also studied. Pd-Fe/CNT showed the best performance in terms of activity (X≈81 %) and stability, with the high...

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Autores: Liu, Sichen, Iglesias Juez, Ana, Hungría Hernández, Ana Belén, Martín Martínez, María, Bedia García-Matamoros, Jorge, Rodríguez Jiménez, Juan José, Gómez Sainero, Luisa María
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/712747
Acceso en línea:http://hdl.handle.net/10486/712747
https://dx.doi.org/10.1016/j.cej.2024.152128
Access Level:acceso abierto
Palabra clave:Hydrodechlorination
Dichloromethane
Olefins
Bimetallic Catalysts
Pd
CNT
Química
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spelling Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalystLiu, SichenIglesias Juez, AnaHungría Hernández, Ana BelénMartín Martínez, MaríaBedia García-Matamoros, JorgeRodríguez Jiménez, Juan JoséGómez Sainero, Luisa MaríaHydrodechlorinationDichloromethaneOlefinsBimetallic CatalystsPdCNTQuímicaUpgrading of waste dichloromethane to produce olefins has been performed by hydrodechlorination (HDC) using bimetallic catalysts consisting of Pd-Fe/CNT, Pd-Sn/CNT and Pd-Ag/CNT. Pd/CNT was also studied. Pd-Fe/CNT showed the best performance in terms of activity (X≈81 %) and stability, with the highest selectivity to olefins (>60 %, mainly C2H4), at 350 ◦C, which could be mainly attributed to the existence of stable Pd-Fe interaction. Characterization results and density functional theory calculations suggest that incorporating Fe atoms into the Pd lattice changes its electronic and geometrical properties. Fe atoms show stronger dissociative adsorption of CH2Cl2 than Pd ones, leading to lower activation energies for the dechlorination of CH2Cl2 on the studied Pd-Fe (111), which also favors the formation of C-C bond between two adjacent CH2*, promoting the formation of C2H4. Pd-Sn and Pd-Ag catalysts hinder olefins formation, due to the non-reactive Sn atoms and significant metal segregation in case of Pd-AgThe authors acknowledge FEDER/Ministerio de Ciencia, Innovación y Universidades – Agencia Estatal de Investigación (CTM2017-85498- R), Comunidad de Madrid/UAM (SI1/PJI/2019-00487) and Junta de Andalucía (P20_00968) for financial support. Maria Martin-Martinez acknowledges a postdoctoral grant (2017-T2/AMB-5668) from the Comunidad de Madrid “Atracción de Talento” program. Sichen Liu acknowledges Ministerio de Ciencia e Innovación for his research grant (PRE2018-084424)ElsevierDepartamento de Ingeniería QuímicaFacultad de CienciasUAM. Departamento de Ingeniería Química20242024-05-17research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/712747https://dx.doi.org/10.1016/j.cej.2024.152128reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7127472026-06-23T12:46:27Z
dc.title.none.fl_str_mv Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst
title Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst
spellingShingle Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst
Liu, Sichen
Hydrodechlorination
Dichloromethane
Olefins
Bimetallic Catalysts
Pd
CNT
Química
title_short Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst
title_full Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst
title_fullStr Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst
title_full_unstemmed Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst
title_sort Upgrading of dichloromethane to olefins by hydrodechlorination: Improving process efficiency by the addition of Fe to carbon nanotubes-supported Pd catalyst
dc.creator.none.fl_str_mv Liu, Sichen
Iglesias Juez, Ana
Hungría Hernández, Ana Belén
Martín Martínez, María
Bedia García-Matamoros, Jorge
Rodríguez Jiménez, Juan José
Gómez Sainero, Luisa María
author Liu, Sichen
author_facet Liu, Sichen
Iglesias Juez, Ana
Hungría Hernández, Ana Belén
Martín Martínez, María
Bedia García-Matamoros, Jorge
Rodríguez Jiménez, Juan José
Gómez Sainero, Luisa María
author_role author
author2 Iglesias Juez, Ana
Hungría Hernández, Ana Belén
Martín Martínez, María
Bedia García-Matamoros, Jorge
Rodríguez Jiménez, Juan José
Gómez Sainero, Luisa María
author2_role author
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 Hydrodechlorination
Dichloromethane
Olefins
Bimetallic Catalysts
Pd
CNT
Química
topic Hydrodechlorination
Dichloromethane
Olefins
Bimetallic Catalysts
Pd
CNT
Química
description Upgrading of waste dichloromethane to produce olefins has been performed by hydrodechlorination (HDC) using bimetallic catalysts consisting of Pd-Fe/CNT, Pd-Sn/CNT and Pd-Ag/CNT. Pd/CNT was also studied. Pd-Fe/CNT showed the best performance in terms of activity (X≈81 %) and stability, with the highest selectivity to olefins (>60 %, mainly C2H4), at 350 ◦C, which could be mainly attributed to the existence of stable Pd-Fe interaction. Characterization results and density functional theory calculations suggest that incorporating Fe atoms into the Pd lattice changes its electronic and geometrical properties. Fe atoms show stronger dissociative adsorption of CH2Cl2 than Pd ones, leading to lower activation energies for the dechlorination of CH2Cl2 on the studied Pd-Fe (111), which also favors the formation of C-C bond between two adjacent CH2*, promoting the formation of C2H4. Pd-Sn and Pd-Ag catalysts hinder olefins formation, due to the non-reactive Sn atoms and significant metal segregation in case of Pd-Ag
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-05-17
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/712747
https://dx.doi.org/10.1016/j.cej.2024.152128
url http://hdl.handle.net/10486/712747
https://dx.doi.org/10.1016/j.cej.2024.152128
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
Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
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
Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
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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