Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
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/10400.21/8060 |
Resumo: | The heterogenization of the highly active monovacant polyoxotungstate ([PW11O39](7-), abbreviated as PW11) was achieved by preparing the corresponding long chain quaternary ammonium salt (ODA(7)PW(11), ODA = CH3(CH2)(17)(CH3)(3)N). The complete cation exchange confers total heterogeneity to the monovacant catalyst while keeping its oxidative catalytic activity. In fact, the heterogeneous catalyst allowed for the complete desulfurization of a multicomponent model diesel (2000 ppm S) after 40 min of reaction, conciliating extraction (using BMIMPF6 solvent) and oxidation (ECODS process using H2O2 oxidant). The heterogeneous catalyst has shown a superior desulfurization performance when compared with the homogeneous quaternary ammonium TBAPW(11) catalyst (TBA = (C4H9)(4) N). Both hybrid catalysts have been successfully reused in consecutive ECODS cycles. Additionally, the long carbon chain cations provide a protective environment around the polyoxometalate allowing for ODA(7)PW(11) to retain its heterogeneity and structure after the ECODS process. |
id |
RCAP_cfb31fbe61a5cdb2d29a6aac3d773973 |
---|---|
oai_identifier_str |
oai:repositorio.ipl.pt:10400.21/8060 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuelsPolyoxometalateHybridsExtractive and catalytic oxidative desulfurizationHeterogeneous catalysisThe heterogenization of the highly active monovacant polyoxotungstate ([PW11O39](7-), abbreviated as PW11) was achieved by preparing the corresponding long chain quaternary ammonium salt (ODA(7)PW(11), ODA = CH3(CH2)(17)(CH3)(3)N). The complete cation exchange confers total heterogeneity to the monovacant catalyst while keeping its oxidative catalytic activity. In fact, the heterogeneous catalyst allowed for the complete desulfurization of a multicomponent model diesel (2000 ppm S) after 40 min of reaction, conciliating extraction (using BMIMPF6 solvent) and oxidation (ECODS process using H2O2 oxidant). The heterogeneous catalyst has shown a superior desulfurization performance when compared with the homogeneous quaternary ammonium TBAPW(11) catalyst (TBA = (C4H9)(4) N). Both hybrid catalysts have been successfully reused in consecutive ECODS cycles. Additionally, the long carbon chain cations provide a protective environment around the polyoxometalate allowing for ODA(7)PW(11) to retain its heterogeneity and structure after the ECODS process.ElsevierRCIPLMirante, FátimaDias, LuísSilva, MarianaRibeiro, SusanaCorvo, Marta C.De Castro, BaltazarGranadeiro, CarlosBalula, Salete2018-02-19T13:50:10Z2018-012018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/8060engMIRANTE, Fátima; [et al] – Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels. Catalysis Communications. ISSN 1566-7367. Vol. 104 (2018), pp. 1-81566-736710.1016/j.catcom.2017.10.006metadata only accessinfo: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:RCAAP2023-08-03T09:54:58Zoai:repositorio.ipl.pt:10400.21/8060Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:16:53.811761Repositório 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 |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels |
title |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels |
spellingShingle |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels Mirante, Fátima Polyoxometalate Hybrids Extractive and catalytic oxidative desulfurization Heterogeneous catalysis |
title_short |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels |
title_full |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels |
title_fullStr |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels |
title_full_unstemmed |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels |
title_sort |
Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels |
author |
Mirante, Fátima |
author_facet |
Mirante, Fátima Dias, Luís Silva, Mariana Ribeiro, Susana Corvo, Marta C. De Castro, Baltazar Granadeiro, Carlos Balula, Salete |
author_role |
author |
author2 |
Dias, Luís Silva, Mariana Ribeiro, Susana Corvo, Marta C. De Castro, Baltazar Granadeiro, Carlos Balula, Salete |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Mirante, Fátima Dias, Luís Silva, Mariana Ribeiro, Susana Corvo, Marta C. De Castro, Baltazar Granadeiro, Carlos Balula, Salete |
dc.subject.por.fl_str_mv |
Polyoxometalate Hybrids Extractive and catalytic oxidative desulfurization Heterogeneous catalysis |
topic |
Polyoxometalate Hybrids Extractive and catalytic oxidative desulfurization Heterogeneous catalysis |
description |
The heterogenization of the highly active monovacant polyoxotungstate ([PW11O39](7-), abbreviated as PW11) was achieved by preparing the corresponding long chain quaternary ammonium salt (ODA(7)PW(11), ODA = CH3(CH2)(17)(CH3)(3)N). The complete cation exchange confers total heterogeneity to the monovacant catalyst while keeping its oxidative catalytic activity. In fact, the heterogeneous catalyst allowed for the complete desulfurization of a multicomponent model diesel (2000 ppm S) after 40 min of reaction, conciliating extraction (using BMIMPF6 solvent) and oxidation (ECODS process using H2O2 oxidant). The heterogeneous catalyst has shown a superior desulfurization performance when compared with the homogeneous quaternary ammonium TBAPW(11) catalyst (TBA = (C4H9)(4) N). Both hybrid catalysts have been successfully reused in consecutive ECODS cycles. Additionally, the long carbon chain cations provide a protective environment around the polyoxometalate allowing for ODA(7)PW(11) to retain its heterogeneity and structure after the ECODS process. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-02-19T13:50:10Z 2018-01 2018-01-01T00:00:00Z |
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/10400.21/8060 |
url |
http://hdl.handle.net/10400.21/8060 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
MIRANTE, Fátima; [et al] – Efficient heterogeneous polyoxometalate-hybrid catalysts for the oxidative desulfurization of fuels. Catalysis Communications. ISSN 1566-7367. Vol. 104 (2018), pp. 1-8 1566-7367 10.1016/j.catcom.2017.10.006 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
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: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 |
repository.mail.fl_str_mv |
|
_version_ |
1799133430597812224 |