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Analysis of sensing properties of thermoelectric vapor sensor made of carbon nanotubes/ethylene-octene copolymer composites

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dc.title Analysis of sensing properties of thermoelectric vapor sensor made of carbon nanotubes/ethylene-octene copolymer composites en
dc.contributor.author Slobodian, Petr
dc.contributor.author Říha, Pavel
dc.contributor.author Olejník, Robert
dc.contributor.author Benlikaya, Ruhan
dc.relation.ispartof Carbon
dc.identifier.issn 0008-6223 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2016
utb.relation.volume 110
dc.citation.spage 257
dc.citation.epage 266
dc.type article
dc.language.iso en
dc.publisher Elsevier Ltd.
dc.identifier.doi 10.1016/j.carbon.2016.09.023
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0008622316307746
dc.description.abstract We designed a novel self-powered thermoelectric vapor sensor, whose thermogenerated voltage was modulated by chemical vapors. The sensor was made of composites of oxidized multi-walled carbon nanotubes within ethylene-octene copolymer. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy of the multi-walled carbon nanotubes within ethylene-octene copolymer showed that the oxidation with HNO3 or KMnO4 enhanced its p-type electrical conductivity and that the thermoelectric power increase was proportional to the formation of new oxygen-containing functional groups on the surface of carbon nanotubes. When this composite was subjected to a saturated vapor of either heptane (aliphatic hydrocarbon), toluene (aromatic hydrocarbon) or ethanol (alcohol), its respective relative resistance increased in average by 3.6, 1.1 and 0.05. Consequently, the magnitude of voltage generated by the thermoelectric device containing the oxidized multi-walled carbon nanotubes within ethylene-octene copolymer determined the absence or presence of the aforementioned chemical vapors. © 2016 Elsevier Ltd en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1006733
utb.identifier.obdid 43875252
utb.identifier.scopus 2-s2.0-84988027155
utb.identifier.wok 000386402700029
utb.identifier.coden CRBNA
utb.source j-scopus
dc.date.accessioned 2016-12-22T16:19:00Z
dc.date.available 2016-12-22T16:19:00Z
dc.description.sponsorship MŠMT, Ministry of Education, Youth and Sports
dc.description.sponsorship Ministry of Education, Youth and Sports of the Czech Republic - Program NPU I [LO1504]; Fund of the Institute of Hydrodynamics [AV0Z20600510]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Slobodian, Petr
utb.contributor.internalauthor Olejník, Robert
utb.fulltext.affiliation Petr Slobodian a, * , Pavel Riha b , Robert Olejnik a , Ruhan Benlikaya c a Centre of Polymer Systems, University Institute, Tomas Bata University, Trida T. Bati 5678, 76001 Zlin, Czech Republic b Institute of Hydrodynamics, Czech Academy of Sciences, Pod Patankou 5, 16612 Prague 6, Czech Republic c Department of Secondary Science and Mathematics Education, Balikesir University, 10100 Balikesir, Turkey * Corresponding author. E-mail address: slobodian@cps.ft.utb.cz (P. Slobodian).
utb.fulltext.dates Received 16 June 2016 Received in revised form 5 September 2016 Accepted 9 September 2016 Available online 10 September 2016
utb.fulltext.sponsorship This work was supported by the Ministry of Education, Youth and Sports of the Czech Republic e Program NPU I (LO1504). P. R. would gratefully like to acknowledge financial support from the Fund of the Institute of Hydrodynamics AV0Z20600510.
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