All-solution processed CuGaS2-based photoelectrodes for CO2 reduction
Autor(a) principal: | |
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Data de Publicação: | 2022 |
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.2022.101902 http://hdl.handle.net/11449/234028 |
Resumo: | Considering the influence of carbon dioxide (CO2) on global warming, an all-solution approach is presented here to fabricate nanocrystalline film of the ternary chalcopyrite for the photoelectrochemical CO2 reduction. High-purity nanocrystalline catalysts CuGaS2, Cu(Ga,Bi)S2, and Cu(Ga,In)S2 were obtained by a facile and fast spray method using a molecular ink. Those semiconductors were evaluated in the photoelectrocatalytic CO2 reduction under illumination of 1 Sun (100 mW cm−2) applying potentials from − 0.3 V to − 0.7 V vs Ag/AgCl. Methanol was identified as the major product, furthermore, 2 C and 3 C compounds were also identified. Despite the interesting results, doping with In and Bi caused the formation of defects in the absorber layer, probably inducing recombination mechanisms, thus, affecting the stability and the performance of the photocathode in the CO2 reduction. Meanwhile, Mo/CuGaS2/CdS/TiO2 photocathode showed promising stability and reproducibility for CO2 reduction under illumination (100 mW cm−2) for 240 min at − 0.7 V. |
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All-solution processed CuGaS2-based photoelectrodes for CO2 reductionCarbon dioxideChalcopyriteMethanolPhotoelectrocatalysisSolution-processedConsidering the influence of carbon dioxide (CO2) on global warming, an all-solution approach is presented here to fabricate nanocrystalline film of the ternary chalcopyrite for the photoelectrochemical CO2 reduction. High-purity nanocrystalline catalysts CuGaS2, Cu(Ga,Bi)S2, and Cu(Ga,In)S2 were obtained by a facile and fast spray method using a molecular ink. Those semiconductors were evaluated in the photoelectrocatalytic CO2 reduction under illumination of 1 Sun (100 mW cm−2) applying potentials from − 0.3 V to − 0.7 V vs Ag/AgCl. Methanol was identified as the major product, furthermore, 2 C and 3 C compounds were also identified. Despite the interesting results, doping with In and Bi caused the formation of defects in the absorber layer, probably inducing recombination mechanisms, thus, affecting the stability and the performance of the photocathode in the CO2 reduction. Meanwhile, Mo/CuGaS2/CdS/TiO2 photocathode showed promising stability and reproducibility for CO2 reduction under illumination (100 mW cm−2) for 240 min at − 0.7 V.Department of Chemistry Federal University of São Carlos, Rod. Washington Luiz, Km 235, CEPUniv. Estadual Paulista Institute of Chemistry UNESP, Rua Francisco Degni, 55, Bairro QuitandinhaUniv. Estadual Paulista Institute of Chemistry UNESP, Rua Francisco Degni, 55, Bairro QuitandinhaUniversidade Federal de São Carlos (UFSCar)Universidade Estadual Paulista (UNESP)Brito, Juliana Ferreira deAndrade, Marcos Antonio SantanaZanoni, Maria Valnice Boldrin [UNESP]Mascaro, Lucia Helena2022-05-01T12:40:47Z2022-05-01T12:40:47Z2022-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jcou.2022.101902Journal of CO2 Utilization, v. 57.2212-9820http://hdl.handle.net/11449/23402810.1016/j.jcou.2022.1019022-s2.0-85123029939Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of CO2 Utilizationinfo:eu-repo/semantics/openAccess2022-05-01T12:40:47Zoai:repositorio.unesp.br:11449/234028Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-05-01T12:40:47Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
All-solution processed CuGaS2-based photoelectrodes for CO2 reduction |
title |
All-solution processed CuGaS2-based photoelectrodes for CO2 reduction |
spellingShingle |
All-solution processed CuGaS2-based photoelectrodes for CO2 reduction Brito, Juliana Ferreira de Carbon dioxide Chalcopyrite Methanol Photoelectrocatalysis Solution-processed |
title_short |
All-solution processed CuGaS2-based photoelectrodes for CO2 reduction |
title_full |
All-solution processed CuGaS2-based photoelectrodes for CO2 reduction |
title_fullStr |
All-solution processed CuGaS2-based photoelectrodes for CO2 reduction |
title_full_unstemmed |
All-solution processed CuGaS2-based photoelectrodes for CO2 reduction |
title_sort |
All-solution processed CuGaS2-based photoelectrodes for CO2 reduction |
author |
Brito, Juliana Ferreira de |
author_facet |
Brito, Juliana Ferreira de Andrade, Marcos Antonio Santana Zanoni, Maria Valnice Boldrin [UNESP] Mascaro, Lucia Helena |
author_role |
author |
author2 |
Andrade, Marcos Antonio Santana Zanoni, Maria Valnice Boldrin [UNESP] Mascaro, Lucia Helena |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Carlos (UFSCar) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Brito, Juliana Ferreira de Andrade, Marcos Antonio Santana Zanoni, Maria Valnice Boldrin [UNESP] Mascaro, Lucia Helena |
dc.subject.por.fl_str_mv |
Carbon dioxide Chalcopyrite Methanol Photoelectrocatalysis Solution-processed |
topic |
Carbon dioxide Chalcopyrite Methanol Photoelectrocatalysis Solution-processed |
description |
Considering the influence of carbon dioxide (CO2) on global warming, an all-solution approach is presented here to fabricate nanocrystalline film of the ternary chalcopyrite for the photoelectrochemical CO2 reduction. High-purity nanocrystalline catalysts CuGaS2, Cu(Ga,Bi)S2, and Cu(Ga,In)S2 were obtained by a facile and fast spray method using a molecular ink. Those semiconductors were evaluated in the photoelectrocatalytic CO2 reduction under illumination of 1 Sun (100 mW cm−2) applying potentials from − 0.3 V to − 0.7 V vs Ag/AgCl. Methanol was identified as the major product, furthermore, 2 C and 3 C compounds were also identified. Despite the interesting results, doping with In and Bi caused the formation of defects in the absorber layer, probably inducing recombination mechanisms, thus, affecting the stability and the performance of the photocathode in the CO2 reduction. Meanwhile, Mo/CuGaS2/CdS/TiO2 photocathode showed promising stability and reproducibility for CO2 reduction under illumination (100 mW cm−2) for 240 min at − 0.7 V. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-01T12:40:47Z 2022-05-01T12:40:47Z 2022-03-01 |
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.2022.101902 Journal of CO2 Utilization, v. 57. 2212-9820 http://hdl.handle.net/11449/234028 10.1016/j.jcou.2022.101902 2-s2.0-85123029939 |
url |
http://dx.doi.org/10.1016/j.jcou.2022.101902 http://hdl.handle.net/11449/234028 |
identifier_str_mv |
Journal of CO2 Utilization, v. 57. 2212-9820 10.1016/j.jcou.2022.101902 2-s2.0-85123029939 |
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_ |
1803046411989680128 |