Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/20799 |
Resumo: | Covalently supported ionic liquids in mesoporous materials were prepared by grafting 1-methyl-3-(3-trimethoxysylilpropyl)imidazolium chloride in MCM-41. Subsequently, the [Cl-] anion was changed to [BF4-], [PF6-] or [Tf2N-]. These materials that present an advantageous combination of the properties of mesoporous solid materials and ionic liquids were evaluated for CO2 sorption as well as catalysts for CO2 conversion into cyclic carbonate using propylene oxide. The material with the [Cl-] anion had the best performance for both CO2 sorption and conversion. A CO2 sorption of 11 w/w% on the adsorbent was achieved and the cycloaddition reaction exhibited a conversion of 67% with 82% selectivity with the catalyst remaining active after 5 cycles, proving that the same sorbent/catalyst setup can be used for both CO2 capture and conversion. Based on the experimental data and electronic-structure numerical simulations, we have hypothesized two major reasons why chloride out performs other anions when adsorbed on MCM-41 unlike unsupported ionic liquids. |
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Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silicaMAGNETIC SUSPENSION BALANCECARBON-DIOXIDE SOLUBILITYCYCLIC CARBONATESMCM-41ADSORPTIONCATALYSTCYCLOADDITIONEPOXIDESMATRIXTRANSFORMATIONCovalently supported ionic liquids in mesoporous materials were prepared by grafting 1-methyl-3-(3-trimethoxysylilpropyl)imidazolium chloride in MCM-41. Subsequently, the [Cl-] anion was changed to [BF4-], [PF6-] or [Tf2N-]. These materials that present an advantageous combination of the properties of mesoporous solid materials and ionic liquids were evaluated for CO2 sorption as well as catalysts for CO2 conversion into cyclic carbonate using propylene oxide. The material with the [Cl-] anion had the best performance for both CO2 sorption and conversion. A CO2 sorption of 11 w/w% on the adsorbent was achieved and the cycloaddition reaction exhibited a conversion of 67% with 82% selectivity with the catalyst remaining active after 5 cycles, proving that the same sorbent/catalyst setup can be used for both CO2 capture and conversion. Based on the experimental data and electronic-structure numerical simulations, we have hypothesized two major reasons why chloride out performs other anions when adsorbed on MCM-41 unlike unsupported ionic liquids.ROYAL SOC CHEMISTRY2017-12-07T19:59:49Z2015-01-01T00:00:00Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/20799eng2046-206910.1039/c5ra07561kAquino, A. S.Bernard, F. L.Borges, J. V.Mafra, L.Dalla Vecchia, F.Vieira, M. O.Ligabue, R.Seferin, M.Chaban, Vitaly V.Cabrita, E. J.Einloft, S.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:40:57Zoai:ria.ua.pt:10773/20799Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:55:27.144665Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica |
title |
Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica |
spellingShingle |
Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica Aquino, A. S. MAGNETIC SUSPENSION BALANCE CARBON-DIOXIDE SOLUBILITY CYCLIC CARBONATES MCM-41 ADSORPTION CATALYST CYCLOADDITION EPOXIDES MATRIX TRANSFORMATION |
title_short |
Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica |
title_full |
Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica |
title_fullStr |
Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica |
title_full_unstemmed |
Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica |
title_sort |
Rationalizing the role of the anion in CO2 capture and conversion using imidazolium-based ionic liquid modified mesoporous silica |
author |
Aquino, A. S. |
author_facet |
Aquino, A. S. Bernard, F. L. Borges, J. V. Mafra, L. Dalla Vecchia, F. Vieira, M. O. Ligabue, R. Seferin, M. Chaban, Vitaly V. Cabrita, E. J. Einloft, S. |
author_role |
author |
author2 |
Bernard, F. L. Borges, J. V. Mafra, L. Dalla Vecchia, F. Vieira, M. O. Ligabue, R. Seferin, M. Chaban, Vitaly V. Cabrita, E. J. Einloft, S. |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Aquino, A. S. Bernard, F. L. Borges, J. V. Mafra, L. Dalla Vecchia, F. Vieira, M. O. Ligabue, R. Seferin, M. Chaban, Vitaly V. Cabrita, E. J. Einloft, S. |
dc.subject.por.fl_str_mv |
MAGNETIC SUSPENSION BALANCE CARBON-DIOXIDE SOLUBILITY CYCLIC CARBONATES MCM-41 ADSORPTION CATALYST CYCLOADDITION EPOXIDES MATRIX TRANSFORMATION |
topic |
MAGNETIC SUSPENSION BALANCE CARBON-DIOXIDE SOLUBILITY CYCLIC CARBONATES MCM-41 ADSORPTION CATALYST CYCLOADDITION EPOXIDES MATRIX TRANSFORMATION |
description |
Covalently supported ionic liquids in mesoporous materials were prepared by grafting 1-methyl-3-(3-trimethoxysylilpropyl)imidazolium chloride in MCM-41. Subsequently, the [Cl-] anion was changed to [BF4-], [PF6-] or [Tf2N-]. These materials that present an advantageous combination of the properties of mesoporous solid materials and ionic liquids were evaluated for CO2 sorption as well as catalysts for CO2 conversion into cyclic carbonate using propylene oxide. The material with the [Cl-] anion had the best performance for both CO2 sorption and conversion. A CO2 sorption of 11 w/w% on the adsorbent was achieved and the cycloaddition reaction exhibited a conversion of 67% with 82% selectivity with the catalyst remaining active after 5 cycles, proving that the same sorbent/catalyst setup can be used for both CO2 capture and conversion. Based on the experimental data and electronic-structure numerical simulations, we have hypothesized two major reasons why chloride out performs other anions when adsorbed on MCM-41 unlike unsupported ionic liquids. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01T00:00:00Z 2015 2017-12-07T19:59:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/20799 |
url |
http://hdl.handle.net/10773/20799 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2046-2069 10.1039/c5ra07561k |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
ROYAL SOC CHEMISTRY |
publisher.none.fl_str_mv |
ROYAL SOC CHEMISTRY |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137607755497472 |