Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature

Detalhes bibliográficos
Autor(a) principal: Zito, C. A. [UNESP]
Data de Publicação: 2017
Outros Autores: Volanti, D. P. [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1002/9781119321811.ch25
http://hdl.handle.net/11449/170812
Resumo: Nanocomposites based on metal oxide semiconductors and reduced graphene oxide (RGO) have been proposed as gas sensors to respond at room temperature. In this work, we prepared SnO2-RGO nanocomposite by microwave-assisted hydrothermal (MAH) method in one-step. The combined characterization techniques including X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, field emission-scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM) confirm the formation of SnO2-RGO nanocomposite, and the distribution of SnO2 nanoparticles on RGO surface. The gas sensing performance of SnO2-RGO was evaluated by ethanol exposure at room temperature (21 °C). The results of gas sensing performance reveal that SnO2-RGO sensor has a great response to ethanol at room temperature, with a response time of about 100 seconds for the highest concentration of the gas (1,500 ppm). Moreover, it was found that the sensor has a higher selectivity for ethanol than for methanol. It is considered that RGO plays an important role in the gas sensing response.
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spelling Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperatureNanocomposites based on metal oxide semiconductors and reduced graphene oxide (RGO) have been proposed as gas sensors to respond at room temperature. In this work, we prepared SnO2-RGO nanocomposite by microwave-assisted hydrothermal (MAH) method in one-step. The combined characterization techniques including X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, field emission-scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM) confirm the formation of SnO2-RGO nanocomposite, and the distribution of SnO2 nanoparticles on RGO surface. The gas sensing performance of SnO2-RGO was evaluated by ethanol exposure at room temperature (21 °C). The results of gas sensing performance reveal that SnO2-RGO sensor has a great response to ethanol at room temperature, with a response time of about 100 seconds for the highest concentration of the gas (1,500 ppm). Moreover, it was found that the sensor has a higher selectivity for ethanol than for methanol. It is considered that RGO plays an important role in the gas sensing response.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Chemistry and Environmental Sciences São Paulo State University UNESPDepartment of Chemistry and Environmental Sciences São Paulo State University UNESPFAPESP: #2015/05916-9FAPESP: 2014/17343-0Universidade Estadual Paulista (Unesp)Zito, C. A. [UNESP]Volanti, D. P. [UNESP]2018-12-11T16:52:31Z2018-12-11T16:52:31Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject273-279http://dx.doi.org/10.1002/9781119321811.ch25Ceramic Engineering and Science Proceedings, v. 37, n. 7, p. 273-279, 2017.0196-6219http://hdl.handle.net/11449/17081210.1002/9781119321811.ch252-s2.0-8504432298323547399804067250000-0001-9315-9392Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCeramic Engineering and Science Proceedings0,152info:eu-repo/semantics/openAccess2021-10-23T21:44:29Zoai:repositorio.unesp.br:11449/170812Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:58:46.284945Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature
title Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature
spellingShingle Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature
Zito, C. A. [UNESP]
title_short Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature
title_full Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature
title_fullStr Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature
title_full_unstemmed Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature
title_sort Sno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperature
author Zito, C. A. [UNESP]
author_facet Zito, C. A. [UNESP]
Volanti, D. P. [UNESP]
author_role author
author2 Volanti, D. P. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Zito, C. A. [UNESP]
Volanti, D. P. [UNESP]
description Nanocomposites based on metal oxide semiconductors and reduced graphene oxide (RGO) have been proposed as gas sensors to respond at room temperature. In this work, we prepared SnO2-RGO nanocomposite by microwave-assisted hydrothermal (MAH) method in one-step. The combined characterization techniques including X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, field emission-scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM) confirm the formation of SnO2-RGO nanocomposite, and the distribution of SnO2 nanoparticles on RGO surface. The gas sensing performance of SnO2-RGO was evaluated by ethanol exposure at room temperature (21 °C). The results of gas sensing performance reveal that SnO2-RGO sensor has a great response to ethanol at room temperature, with a response time of about 100 seconds for the highest concentration of the gas (1,500 ppm). Moreover, it was found that the sensor has a higher selectivity for ethanol than for methanol. It is considered that RGO plays an important role in the gas sensing response.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
2018-12-11T16:52:31Z
2018-12-11T16:52:31Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1002/9781119321811.ch25
Ceramic Engineering and Science Proceedings, v. 37, n. 7, p. 273-279, 2017.
0196-6219
http://hdl.handle.net/11449/170812
10.1002/9781119321811.ch25
2-s2.0-85044322983
2354739980406725
0000-0001-9315-9392
url http://dx.doi.org/10.1002/9781119321811.ch25
http://hdl.handle.net/11449/170812
identifier_str_mv Ceramic Engineering and Science Proceedings, v. 37, n. 7, p. 273-279, 2017.
0196-6219
10.1002/9781119321811.ch25
2-s2.0-85044322983
2354739980406725
0000-0001-9315-9392
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ceramic Engineering and Science Proceedings
0,152
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 273-279
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
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