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

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dc.contributor.authorZito, C. A. [UNESP]
dc.contributor.authorVolanti, D. P. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:52:31Z
dc.date.available2018-12-11T16:52:31Z
dc.date.issued2017-01-01
dc.description.abstractNanocomposites 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.en
dc.description.affiliationDepartment of Chemistry and Environmental Sciences São Paulo State University UNESP
dc.description.affiliationUnespDepartment of Chemistry and Environmental Sciences São Paulo State University UNESP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: #2015/05916-9
dc.description.sponsorshipIdFAPESP: 2014/17343-0
dc.format.extent273-279
dc.identifierhttp://dx.doi.org/10.1002/9781119321811.ch25
dc.identifier.citationCeramic Engineering and Science Proceedings, v. 37, n. 7, p. 273-279, 2017.
dc.identifier.doi10.1002/9781119321811.ch25
dc.identifier.issn0196-6219
dc.identifier.lattes2354739980406725
dc.identifier.orcid0000-0001-9315-9392
dc.identifier.scopus2-s2.0-85044322983
dc.identifier.urihttp://hdl.handle.net/11449/170812
dc.language.isoeng
dc.relation.ispartofCeramic Engineering and Science Proceedings
dc.relation.ispartofsjr0,152
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleSno2-reduced graphene oxide nanocomposite for ethanol sensing at room temperatureen
dc.typeTrabalho apresentado em evento
unesp.author.lattes2354739980406725[2]
unesp.author.orcid0000-0001-9315-9392[2]

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