Organic vapour sensing and thermoelectric properties of carbon nanotubes/ethylene-octene copolymer composites combined in a thermopile
Result description
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 withinnethylene-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-containingnfunctional 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
thermoelectric polymersself-powered vapor sensorX-ray photoelectron spectroscopy
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/70883521:28610/16:43875161
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Organic vapour sensing and thermoelectric properties of carbon nanotubes/ethylene-octene copolymer composites combined in a thermopile
Original language description
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 withinnethylene-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-containingnfunctional 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.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Result continuities
Project
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
International workshop on the application of nanomaterials
ISBN
978-80-7454-622-8
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
34-41
Publisher name
Tomas Bata University
Place of publication
Zlín
Event location
Zlín
Event date
Nov 15, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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Basic information
Result type
D - Article in proceedings
CEP
BK - Liquid mechanics
Year of implementation
2016