Thin polyaniline and polyaniline/carbon nanocomposite films for gas sensing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F11%3A00358888" target="_blank" >RIV/61389013:_____/11:00358888 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.tsf.2011.01.177" target="_blank" >http://dx.doi.org/10.1016/j.tsf.2011.01.177</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tsf.2011.01.177" target="_blank" >10.1016/j.tsf.2011.01.177</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thin polyaniline and polyaniline/carbon nanocomposite films for gas sensing

Popis výsledku v původním jazyce

We have studied the gas sensing properties of five polyaniline-based materials?thick and thin polyaniline (PANI) films, nanocomposite films of PANI and single-wall and multi-wall carbon nanotubes, and PANI nanogranules embedded in a polyvinylpyrrolidonematrix. The films were deposited within the induction period of the polymerization process on gold interdigitated micro electrodes. Their sensitivity to ammonia, hydrogen, ethanol, methanol, and acetone was measured. The thin PANI film (100 nm thick) prepared by a lift-off process had the sensitivity to ammonia below 0.5 ppm, which was higher than that of nanocomposite films. Two materials ? thick PANI film and nanocomposite film of PANI and multi-wall carbon nanotubes ? exhibited a shallow minimum in the temperature dependence of resistance at 313 K and 319 K, which is a feature exploitable in practical applications, since the gas sensors should be insensitive to small temperature fluctuations at these temperatures.

Název v anglickém jazyce

Thin polyaniline and polyaniline/carbon nanocomposite films for gas sensing

Popis výsledku anglicky

We have studied the gas sensing properties of five polyaniline-based materials?thick and thin polyaniline (PANI) films, nanocomposite films of PANI and single-wall and multi-wall carbon nanotubes, and PANI nanogranules embedded in a polyvinylpyrrolidonematrix. The films were deposited within the induction period of the polymerization process on gold interdigitated micro electrodes. Their sensitivity to ammonia, hydrogen, ethanol, methanol, and acetone was measured. The thin PANI film (100 nm thick) prepared by a lift-off process had the sensitivity to ammonia below 0.5 ppm, which was higher than that of nanocomposite films. Two materials ? thick PANI film and nanocomposite film of PANI and multi-wall carbon nanotubes ? exhibited a shallow minimum in the temperature dependence of resistance at 313 K and 319 K, which is a feature exploitable in practical applications, since the gas sensors should be insensitive to small temperature fluctuations at these temperatures.

Druh

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

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Thin Solid Films

ISSN

0040-6090

e-ISSN

—

Svazek periodika

519

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

5

Strana od-do

4123-4127

Kód UT WoS článku

000290184500033

EID výsledku v databázi Scopus

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