Original title: Organic vapour sensing and thermoelectric properties of carbon nanotubes/ethylene-octene copolymer composites combined in a thermopile
Authors: Slobodian, P. ; Říha, Pavel ; Olejník, R. ; Benlikaya, R.
Document type: Papers
Conference/Event: International workshop on the application of nanomaterials, Zlín (CZ), 20161115
Year: 2016
Language: eng
Abstract: A novel self-powered thermoelectric vapor sensor, whose thermogenerated voltage was modulated by chemical vapors is presented. The sensor was made of composites of oxidized multi-walled carbon nanotubes within\nethylene-octene copolymer. The multi-walled carbon nanotubes within ethylene-octene copolymer showed that the oxidation with KMnO4 enhanced its p-type electrical conductivity and that the thermoelectric power increase was proportional to the formation of new oxygen-containing\nfunctional 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.
Keywords: self-powered vapor sensor; thermoelectric polymers; X-ray photoelectron spectroscopy
Project no.: CEZ:AV0Z20600510 (CEP), LO1504 (CEP)
Funding provider: Ministerstvo školství, mládeže a tělovýchovy (MŠMT)
Host item entry: International workshop on the application of nanomaterials, ISBN 978-80-7454-622-8

Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0265688

Permalink: http://www.nusl.cz/ntk/nusl-261679


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Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers