Plasma surface modification of entangled multi-wall carbon nanotubes network for organic vapor detection

Kód výsledku v IS VaVaI

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RIV/70883521:28610/11:43866529

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Plasma surface modification of entangled multi-wall carbon nanotubes network for organic vapor detection

Popis výsledku v původním jazyce

Entangled multiwall carbon nanotubes (MWCNT) network ?Buckypaper? was made by the vacuum filtration from MWCNT aqueous dispersion. In this way we created multi-wall carbon nanotube (MWCNT) networks featured by randomly entangled pure nanotubes. These networks were applied as gas sensors for organic vapors of ethanol and heptane, polar and nonpolar solvents, respectively. The gas response was detected by electrical resistance measurements. The surface sensitivity and selectivity was then modified by low-temperature reactive surface plasma treatment in different gases. With plasma treatment, we first created the functional groups on the nanotubes surface and latter etch them. These processes changed surface selectivity for detection of organic vapors. The results showed that the MWCNT network electrical resistance increased when exposed to organic solvent vapors. This is reversible process, when removed from the vapors. Therefore, the MWCNT networks show the potential to be used as impro

Název v anglickém jazyce

Plasma surface modification of entangled multi-wall carbon nanotubes network for organic vapor detection

Popis výsledku anglicky

Entangled multiwall carbon nanotubes (MWCNT) network ?Buckypaper? was made by the vacuum filtration from MWCNT aqueous dispersion. In this way we created multi-wall carbon nanotube (MWCNT) networks featured by randomly entangled pure nanotubes. These networks were applied as gas sensors for organic vapors of ethanol and heptane, polar and nonpolar solvents, respectively. The gas response was detected by electrical resistance measurements. The surface sensitivity and selectivity was then modified by low-temperature reactive surface plasma treatment in different gases. With plasma treatment, we first created the functional groups on the nanotubes surface and latter etch them. These processes changed surface selectivity for detection of organic vapors. The results showed that the MWCNT network electrical resistance increased when exposed to organic solvent vapors. This is reversible process, when removed from the vapors. Therefore, the MWCNT networks show the potential to be used as impro

Druh

D - Stať ve sborníku

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0111" target="_blank" >ED2.1.00/03.0111: Centrum polymerních systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

Conference proceedings / 4th International Conference on Advanced Plasma Technologies (iCAPT-IV) with Workshop on Plasma Synthesis and Applications of Nanomaterials & 112th IUVSTA Executive Council Meeting

ISBN

978-961-92989-3-0

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

154-160

Název nakladatele

Slovenian Society for Vacuum Technique

Místo vydání

Ljubljana

Místo konání akce

Strunjan

Datum konání akce

11. 9. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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