Počet záznamů: 1  

The synergy of ultrasonic treatment and organic modifiers for tuning the surface chemistry and conductivity of multiwalled carbon nanotubes

  1. 1.
    SYSNO ASEP0433163
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevThe synergy of ultrasonic treatment and organic modifiers for tuning the surface chemistry and conductivity of multiwalled carbon nanotubes
    Tvůrce(i) Omastová, M. (SK)
    Mičušík, M. (SK)
    Fedorko, P. (SK)
    Pionteck, J. (DE)
    Kovářová, Jana (UMCH-V) RID
    Chehimi, M. M. (FR)
    Zdroj.dok.Surface and Interface Analysis. - : Wiley - ISSN 0142-2421
    Roč. 46, 10-11 (2014), s. 940-944
    Poč.str.5 s.
    AkceEuropean Conference on Applications of Surface and Interface Analysis /15./ - ECASIA 2013
    Datum konání13.10.2013-18.10.2013
    Místo konáníCagliari
    ZeměIT - Itálie
    Typ akceWRD
    Jazyk dok.eng - angličtina
    Země vyd.GB - Velká Británie
    Klíč. slovacarbon nanotubes ; surface modification ; surfactant
    Vědní obor RIVCD - Makromolekulární chemie
    Institucionální podporaUMCH-V - RVO:61389013
    UT WOS000344987400059
    EID SCOPUS84908177341
    DOI10.1002/sia.5427
    AnotaceMultiwalled carbon nanotubes (CNT) were modified via the non-covalent approach using anodic surfactants dodecylbenzenesulfonic acid (DBSA) and poly(ethylene glycol) n-alkyl 3-sulfopropyl ether potassium salt and cationic surfactant cetyltrimethylammonium bromide (CTAB). These surfactants were used individually or as DBSA/CTAB mixtures. Surface modification was ultrasonically-assisted with a control over sonication power (64 or 360 W). The surface properties of modified CNT particles were determined by X-ray photoelectron spectroscopy and scanning electron microscopy. The electrical conductivities of unmodified CNT, particles treated by ultrasound, and CNT modified with surfactants were measured. Thermogravimetric analysis was used to determine the mass loading of surfactants after drying. The highest increase in conductivity was reached when CNT were treated solely with the anionic surfactant DBSA under the influence of soft ultrasound. This work shows conclusively that ultrasound-assisted modification of CNT by surfactants is a simple and efficient approach to prepare surface modified and highly conductive CNT, provided that physical (ultrasonic) and chemical (surfactants) treatments are concomitantly controlled.
    PracovištěÚstav makromolekulární chemie
    KontaktEva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
    Rok sběru2015
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.