Functionalized multi-walled carbon nanotube paper for monitoring chemical vapors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F15%3A00446249" target="_blank" >RIV/67985874:_____/15:00446249 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/15:43873082

Výsledek na webu

<a href="http://dx.doi.org/10.1166/jnn.2015.9523" target="_blank" >http://dx.doi.org/10.1166/jnn.2015.9523</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1166/jnn.2015.9523" target="_blank" >10.1166/jnn.2015.9523</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Functionalized multi-walled carbon nanotube paper for monitoring chemical vapors

Popis výsledku v původním jazyce

The multi-walled carbon nanotube paper is prepared by vacuum filtration of pure nanotubes and their functionalized forms prepared by KMnO4 and H2O2 oxidation or by grafting with Poly(methyl methacrylate) (PMMA) and polypyrrole to form sensory nanotubes layer for detection of volatile organic compounds in air. The selected compounds for experimentation (acetone, diethyl ether, isopentane, methanol, tetrahydrofuran) have different polarities and volume fractions of saturated vapors. The sensing is measured by electrical resistance of the paper, which increases when exposed to vapors. A reversible reaction is observed when the paper is removed from the vapors. The functionalized nanotubes differ in their sensitivity to selected organics solvents. For example, KMnO4 oxidized paper has differentiated response to all used vapors, so the measured data may indicate clearly the type of the vapor. On the other hand, the MWCNT/PMMA composite has nearly the same response to acetone, diethyl ether and tetrahydrofuran and different response to isopentane and methanol. The investigation can lead to construction of sensory unit which could be capable of detecting and identifying different vapors in the air.

Název v anglickém jazyce

Functionalized multi-walled carbon nanotube paper for monitoring chemical vapors

Popis výsledku anglicky

The multi-walled carbon nanotube paper is prepared by vacuum filtration of pure nanotubes and their functionalized forms prepared by KMnO4 and H2O2 oxidation or by grafting with Poly(methyl methacrylate) (PMMA) and polypyrrole to form sensory nanotubes layer for detection of volatile organic compounds in air. The selected compounds for experimentation (acetone, diethyl ether, isopentane, methanol, tetrahydrofuran) have different polarities and volume fractions of saturated vapors. The sensing is measured by electrical resistance of the paper, which increases when exposed to vapors. A reversible reaction is observed when the paper is removed from the vapors. The functionalized nanotubes differ in their sensitivity to selected organics solvents. For example, KMnO4 oxidized paper has differentiated response to all used vapors, so the measured data may indicate clearly the type of the vapor. On the other hand, the MWCNT/PMMA composite has nearly the same response to acetone, diethyl ether and tetrahydrofuran and different response to isopentane and methanol. The investigation can lead to construction of sensory unit which could be capable of detecting and identifying different vapors in the air.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Nanoscience and Nanotechnology

ISSN

1533-4880

e-ISSN

—

Svazek periodika

15

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

4003-4008

Kód UT WoS článku

000347435200093

EID výsledku v databázi Scopus

2-s2.0-84920687513