Multi-wall carbon nanotube networks as potential resistive gas sensors for organic vapor detection

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F11%3A10018844" target="_blank" >RIV/70883521:28110/11:10018844 - isvavai.cz</a>

Alternative codes found

RIV/67985874:_____/11:00359583 RIV/70883521:28150/11:10018844

Result on the web

<a href="http://dx.doi.org/10.1016/j.carbon.2011.02.020" target="_blank" >http://dx.doi.org/10.1016/j.carbon.2011.02.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.carbon.2011.02.020" target="_blank" >10.1016/j.carbon.2011.02.020</a>

Result language

angličtina

Original language name

Multi-wall carbon nanotube networks as potential resistive gas sensors for organic vapor detection

Original language description

The sensitivity of multi-wall carbon nanotube (MWCNT) networks of randomly entangled pure nanotubes and those oxidized with acidic KMnO4 to various organic solvent vapors (iso-pentane, diethyl ether, acetone and methanol) has been investigated by resistance measurements. The solvents had different polarities given by Hansen solubility parameters and different volume fractions of saturated vapors defined by the vapor pressure. The results show that the network electrical resistance increases when exposedto organic solvent vapors, and a reversible reaction is observed when the network is removed from the vapors. The reaction with KMnO4 increases oxygen content on the nanotube surface and causes lower porosity of MWCNT network as well as higher electrical resistance, which improves the network selectivity to polar solvents. The investigated MWCNT networks could be potentially used as sensing elements for sensitive and selective organic vapor switches.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JB - Sensors, detecting elements, measurement and regulation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Carbon

ISSN

0008-6223

e-ISSN

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Volume of the periodical

49

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

2499-2507

UT code for WoS article

000289663100037

EID of the result in the Scopus database

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