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Thin polyaniline and polyaniline/carbon nanocomposite films for gas sensing
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SYSNO ASEP 0358888 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Thin polyaniline and polyaniline/carbon nanocomposite films for gas sensing Tvůrce(i) Lobotka, P. (SK)
Kunzo, P. (SK)
Kováčová, E. (SK)
Vávra, I. (SK)
Križanová, O. (SK)
Smatko, V. (SK)
Stejskal, Jaroslav (UMCH-V) RID, ORCID, SAI
Konyushenko, Elena (UMCH-V) RID, ORCID
Omastová, M. (SK)
Špitálský, Z. (SK)
Mičušík, M. (SK)
Krupa, I. (SK)Zdroj.dok. Thin Solid Films. - : Elsevier - ISSN 0040-6090
Roč. 519, č. 12 (2011), s. 4123-4127Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova gas sensor ; polyaniline thin film ; nanocomposite Vědní obor RIV CD - Makromolekulární chemie CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000290184500033 DOI 10.1016/j.tsf.2011.01.177 Anotace 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 polyvinylpyrrolidone matrix. 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. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2012
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