Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.mseb.2019.114385 http://hdl.handle.net/11449/187929 |
Resumo: | Semiconductor metal oxides have been used for detecting volatile organic compounds (VOCs). However, these materials present a poor performance in humidity. Here, we report the effect of reduced graphene oxide (RGO) on the ethanol-sensing of CuO under dry and in the relative humidity range of 36–90%. For this purpose, RGO-CuO composites and CuO were synthesized by a one-step microwave-assisted synthesis. The VOCs sensing were performed at the range of 150–350 °C to acetone, benzene, ethanol, methanol, and m-xylene. The RGO-CuO composites exhibited enhanced ethanol sensing when compared with pure CuO at the optimal operating temperature of 250 °C. In addition, the optimal RGO content resulted in an enhanced selectivity and high sensitivity compared to pure CuO. The enhanced ethanol sensing performance of RGO-CuO was attributed to the RGO/CuO heterojunction. Thus, the combination of RGO and p-type CuO semiconductor can be a promising for VOCs detection under wet conditions. |
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Repositório Institucional da UNESP |
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Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphereGraphene-based compositep-type SMOVolatile organic compoundsWater cross-interferenceSemiconductor metal oxides have been used for detecting volatile organic compounds (VOCs). However, these materials present a poor performance in humidity. Here, we report the effect of reduced graphene oxide (RGO) on the ethanol-sensing of CuO under dry and in the relative humidity range of 36–90%. For this purpose, RGO-CuO composites and CuO were synthesized by a one-step microwave-assisted synthesis. The VOCs sensing were performed at the range of 150–350 °C to acetone, benzene, ethanol, methanol, and m-xylene. The RGO-CuO composites exhibited enhanced ethanol sensing when compared with pure CuO at the optimal operating temperature of 250 °C. In addition, the optimal RGO content resulted in an enhanced selectivity and high sensitivity compared to pure CuO. The enhanced ethanol sensing performance of RGO-CuO was attributed to the RGO/CuO heterojunction. Thus, the combination of RGO and p-type CuO semiconductor can be a promising for VOCs detection under wet conditions.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)São Paulo State University (Unesp) Laboratory of Materials for Sustainability (LabMatSus), R. Cristóvão Colombo, 2265São Paulo State University (Unesp) Laboratory of Materials for Sustainability (LabMatSus), R. Cristóvão Colombo, 2265FAPESP: 2013/23886-4FAPESP: 2014/17343-0FAPESP: 2016/25267-8FAPESP: 2017/01267-1FAPESP: 2018/00033-0CNPq: 308327/2018-7Universidade Estadual Paulista (Unesp)Modenes-Junior, Marco A. [UNESP]Zito, Cecilia A. [UNESP]Perfecto, Tarcísio M. [UNESP]Volanti, Diogo P. [UNESP]2019-10-06T15:51:37Z2019-10-06T15:51:37Z2019-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.mseb.2019.114385Materials Science and Engineering B: Solid-State Materials for Advanced Technology, v. 248.0921-5107http://hdl.handle.net/11449/18792910.1016/j.mseb.2019.1143852-s2.0-8507022199323547399804067250000-0001-9315-9392Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Science and Engineering B: Solid-State Materials for Advanced Technologyinfo:eu-repo/semantics/openAccess2021-10-23T14:54:41Zoai:repositorio.unesp.br:11449/187929Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:51:59.002733Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere |
title |
Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere |
spellingShingle |
Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere Modenes-Junior, Marco A. [UNESP] Graphene-based composite p-type SMO Volatile organic compounds Water cross-interference |
title_short |
Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere |
title_full |
Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere |
title_fullStr |
Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere |
title_full_unstemmed |
Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere |
title_sort |
Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere |
author |
Modenes-Junior, Marco A. [UNESP] |
author_facet |
Modenes-Junior, Marco A. [UNESP] Zito, Cecilia A. [UNESP] Perfecto, Tarcísio M. [UNESP] Volanti, Diogo P. [UNESP] |
author_role |
author |
author2 |
Zito, Cecilia A. [UNESP] Perfecto, Tarcísio M. [UNESP] Volanti, Diogo P. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Modenes-Junior, Marco A. [UNESP] Zito, Cecilia A. [UNESP] Perfecto, Tarcísio M. [UNESP] Volanti, Diogo P. [UNESP] |
dc.subject.por.fl_str_mv |
Graphene-based composite p-type SMO Volatile organic compounds Water cross-interference |
topic |
Graphene-based composite p-type SMO Volatile organic compounds Water cross-interference |
description |
Semiconductor metal oxides have been used for detecting volatile organic compounds (VOCs). However, these materials present a poor performance in humidity. Here, we report the effect of reduced graphene oxide (RGO) on the ethanol-sensing of CuO under dry and in the relative humidity range of 36–90%. For this purpose, RGO-CuO composites and CuO were synthesized by a one-step microwave-assisted synthesis. The VOCs sensing were performed at the range of 150–350 °C to acetone, benzene, ethanol, methanol, and m-xylene. The RGO-CuO composites exhibited enhanced ethanol sensing when compared with pure CuO at the optimal operating temperature of 250 °C. In addition, the optimal RGO content resulted in an enhanced selectivity and high sensitivity compared to pure CuO. The enhanced ethanol sensing performance of RGO-CuO was attributed to the RGO/CuO heterojunction. Thus, the combination of RGO and p-type CuO semiconductor can be a promising for VOCs detection under wet conditions. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:51:37Z 2019-10-06T15:51:37Z 2019-09-01 |
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.mseb.2019.114385 Materials Science and Engineering B: Solid-State Materials for Advanced Technology, v. 248. 0921-5107 http://hdl.handle.net/11449/187929 10.1016/j.mseb.2019.114385 2-s2.0-85070221993 2354739980406725 0000-0001-9315-9392 |
url |
http://dx.doi.org/10.1016/j.mseb.2019.114385 http://hdl.handle.net/11449/187929 |
identifier_str_mv |
Materials Science and Engineering B: Solid-State Materials for Advanced Technology, v. 248. 0921-5107 10.1016/j.mseb.2019.114385 2-s2.0-85070221993 2354739980406725 0000-0001-9315-9392 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Materials Science and Engineering B: Solid-State Materials for Advanced Technology |
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_ |
1808129367455301632 |