The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jcou.2020.101261 http://hdl.handle.net/11449/207967 |
Resumo: | This work describes the magnifique performance of Ti/TiO2 nanotubes coated by a complex of copper (II) porphyrin ([Cu(T4H3MPP)]), assigned as (Ti/TiO2NT-CuP), applied in CO2 reduction to methanol formation by photoelectrocatalysis technique (PEC). The electrochemical behavior of the Ti/TiO2NT-CuP indicates that CO2 is preconcentrated at the electrode surface under the potential of -0.8 V amplify its reduction over the semiconductor in relation to the bare electrode. The system conditions were optimized in order to form methanol and ethanol as products, resulting in 0.35 mmol L-1 of methanol and 0.033 mmol L-1 of ethanol formation after 2 h of PEC under -0.8 V and UV-vis light incidence using 0.1 mol L-1 Na2SO4 as supporting electrolyte. That was the first time that methanol formation is identified under porphyrin-based catalysts and PEC system, while ethanol was never reported before using PEC, PC, or even EC techniques. The PEC technique was compared with photocatalysis and electrocatalysis in the same conditions proving that the synergic effect generated by the coupling of light incidence and bias potential on the semiconductor drives to high chemical fuels generation. |
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Repositório Institucional da UNESP |
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spelling |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcoholArtificial photosynthesisCO2reductionCopper porphyrinOrganic productionPhotoelectrocatalysisThis work describes the magnifique performance of Ti/TiO2 nanotubes coated by a complex of copper (II) porphyrin ([Cu(T4H3MPP)]), assigned as (Ti/TiO2NT-CuP), applied in CO2 reduction to methanol formation by photoelectrocatalysis technique (PEC). The electrochemical behavior of the Ti/TiO2NT-CuP indicates that CO2 is preconcentrated at the electrode surface under the potential of -0.8 V amplify its reduction over the semiconductor in relation to the bare electrode. The system conditions were optimized in order to form methanol and ethanol as products, resulting in 0.35 mmol L-1 of methanol and 0.033 mmol L-1 of ethanol formation after 2 h of PEC under -0.8 V and UV-vis light incidence using 0.1 mol L-1 Na2SO4 as supporting electrolyte. That was the first time that methanol formation is identified under porphyrin-based catalysts and PEC system, while ethanol was never reported before using PEC, PC, or even EC techniques. The PEC technique was compared with photocatalysis and electrocatalysis in the same conditions proving that the synergic effect generated by the coupling of light incidence and bias potential on the semiconductor drives to high chemical fuels generation.National Institute of Alternative Technologies for the Detection Toxicological Evaluation and Removal of Micropollutants and Radioactivies (INCT-DATREM) Universidade Estadual Paulista (Unesp) Instituto de Química, Av. Prof. Francisco Degni, 55Laboratório de Bioinorgânica e Catálise Departamento de Química Centro Politécnico Universidade Federal Do Paraná (UFPR)National Institute of Alternative Technologies for the Detection Toxicological Evaluation and Removal of Micropollutants and Radioactivies (INCT-DATREM) Universidade Estadual Paulista (Unesp) Instituto de Química, Av. Prof. Francisco Degni, 55Universidade Estadual Paulista (Unesp)Universidade Federal do Paraná (UFPR)Brito, Juliana Ferreira De [UNESP]Irikura, Kallyni [UNESP]Terzi, Carolina MachadoNakagaki, ShirleyZanoni, Maria Valnice Boldrin [UNESP]2021-06-25T11:04:11Z2021-06-25T11:04:11Z2020-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jcou.2020.101261Journal of CO2 Utilization, v. 41.2212-9820http://hdl.handle.net/11449/20796710.1016/j.jcou.2020.1012612-s2.0-85090422119Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of CO2 Utilizationinfo:eu-repo/semantics/openAccess2021-10-22T18:12:38Zoai:repositorio.unesp.br:11449/207967Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:45:16.747267Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol |
title |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol |
spellingShingle |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol Brito, Juliana Ferreira De [UNESP] Artificial photosynthesis CO2reduction Copper porphyrin Organic production Photoelectrocatalysis |
title_short |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol |
title_full |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol |
title_fullStr |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol |
title_full_unstemmed |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol |
title_sort |
The great performance of TiO2nanotubes electrodes modified by copper(II)porphyrin in the reduction of carbon dioxide to alcohol |
author |
Brito, Juliana Ferreira De [UNESP] |
author_facet |
Brito, Juliana Ferreira De [UNESP] Irikura, Kallyni [UNESP] Terzi, Carolina Machado Nakagaki, Shirley Zanoni, Maria Valnice Boldrin [UNESP] |
author_role |
author |
author2 |
Irikura, Kallyni [UNESP] Terzi, Carolina Machado Nakagaki, Shirley Zanoni, Maria Valnice Boldrin [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal do Paraná (UFPR) |
dc.contributor.author.fl_str_mv |
Brito, Juliana Ferreira De [UNESP] Irikura, Kallyni [UNESP] Terzi, Carolina Machado Nakagaki, Shirley Zanoni, Maria Valnice Boldrin [UNESP] |
dc.subject.por.fl_str_mv |
Artificial photosynthesis CO2reduction Copper porphyrin Organic production Photoelectrocatalysis |
topic |
Artificial photosynthesis CO2reduction Copper porphyrin Organic production Photoelectrocatalysis |
description |
This work describes the magnifique performance of Ti/TiO2 nanotubes coated by a complex of copper (II) porphyrin ([Cu(T4H3MPP)]), assigned as (Ti/TiO2NT-CuP), applied in CO2 reduction to methanol formation by photoelectrocatalysis technique (PEC). The electrochemical behavior of the Ti/TiO2NT-CuP indicates that CO2 is preconcentrated at the electrode surface under the potential of -0.8 V amplify its reduction over the semiconductor in relation to the bare electrode. The system conditions were optimized in order to form methanol and ethanol as products, resulting in 0.35 mmol L-1 of methanol and 0.033 mmol L-1 of ethanol formation after 2 h of PEC under -0.8 V and UV-vis light incidence using 0.1 mol L-1 Na2SO4 as supporting electrolyte. That was the first time that methanol formation is identified under porphyrin-based catalysts and PEC system, while ethanol was never reported before using PEC, PC, or even EC techniques. The PEC technique was compared with photocatalysis and electrocatalysis in the same conditions proving that the synergic effect generated by the coupling of light incidence and bias potential on the semiconductor drives to high chemical fuels generation. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-01 2021-06-25T11:04:11Z 2021-06-25T11:04:11Z |
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://dx.doi.org/10.1016/j.jcou.2020.101261 Journal of CO2 Utilization, v. 41. 2212-9820 http://hdl.handle.net/11449/207967 10.1016/j.jcou.2020.101261 2-s2.0-85090422119 |
url |
http://dx.doi.org/10.1016/j.jcou.2020.101261 http://hdl.handle.net/11449/207967 |
identifier_str_mv |
Journal of CO2 Utilization, v. 41. 2212-9820 10.1016/j.jcou.2020.101261 2-s2.0-85090422119 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of CO2 Utilization |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128695623221248 |