Plasma treatment as a way of increasing the selectivity of carbon nanotube networks for organic vapor sensing elements
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F13%3A43870180" target="_blank" >RIV/70883521:28610/13:43870180 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.543.410" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.543.410</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.543.410" target="_blank" >10.4028/www.scientific.net/KEM.543.410</a>
Alternative languages
Result language
angličtina
Original language name
Plasma treatment as a way of increasing the selectivity of carbon nanotube networks for organic vapor sensing elements
Original language description
Multi-walled carbon nanotubes networks (MWCNTs) were used as a layer for organic vapor detection. The sensor detects volatile organic compounds (VOC). The gas sensing by MWCNTs is measured by means of macroscopic electrical resistance. The selected solvents had different polarities and volume fractions of saturated vapors. The electrical resistance of MWCNTs increases when exposed to organic solvent vapors, and a reversible reaction is observed when the MWCNT is removed from the vapors. The MWCNTs weremodified by means of plasma treatment. For modifications RF plasma in O-2 at 50 Pa and an afterglow configuration were used. The modified MWCNTs show an increase in sensitivity caused by creating carboxylic groups on the surface of the carbon nanotubes.It leads, for example, to enhancement of the sensitivity from usual 30 % for heptane at RT to more than 200% after plasma treatment in O-2 for 10s.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JB - Sensors, detecting elements, measurement and regulation
OECD FORD branch
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Result continuities
Project
<a href="/en/project/ED2.1.00%2F03.0111" target="_blank" >ED2.1.00/03.0111: Centre of Polymer Systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Key Engineering Materials
ISBN
978-3-03785-616-1
ISSN
1013-9826
e-ISSN
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Number of pages
4
Pages from-to
410-413
Publisher name
Trans Tech Publications Ltd.
Place of publication
Zurich
Event location
Budapest
Event date
May 24, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000319023100099