Number of the records: 1  

Surface Analyses of PVDF/NMP/[EMIM][TFSI] Solid Polymer Electrolyte

  1. 1.
    SYSNO ASEP0545553
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleSurface Analyses of PVDF/NMP/[EMIM][TFSI] Solid Polymer Electrolyte
    Author(s) Sedlák, P. (CZ)
    Sobola, Dinara (UFM-A) ORCID
    Gajdos, A. (CZ)
    Dallaev, R. (CZ)
    Nebojsa, A. (CZ)
    Kuberský, P. (CZ)
    Number of authors6
    Article number2678
    Source TitlePolymers. - : MDPI
    Roč. 13, č. 16 (2021)
    Number of pages16 s.
    Languageeng - English
    CountryCH - Switzerland
    Keywordsionic liquid ; poly(vinylidene fluoride) ; 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ; current fluctuations ; phase-transition ; anion type ; raman ; beta ; crystallization ; pvdf ; solid polymer electrolyte ; imidazolium ionic liquids ; poly-(vinylidene fluoride) ; crystallinity ; solvent evaporation ; Raman spectroscopy ; Fourier transform infrared spectroscopy ; X-ray photoelectron spectroscopy ; secondary ion mass spectroscopy
    Subject RIVCD - Macromolecular Chemistry
    OECD categoryPolymer science
    Method of publishingOpen access
    Institutional supportUFM-A - RVO:68081723
    UT WOS000689760700001
    EID SCOPUS85113170453
    DOI10.3390/polym13162678
    AnnotationThermal treatment conditions of solid polymer polymer electrolyte (SPE) were studied with respect to their impact on the surface morphology, phase composition and chemical composition of an imidazolium ionic-liquid-based SPE, namely PVDF/NMP/[EMIM][TFSI] electrolyte. These investigations were done using scanning electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry as well as X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectroscopy. A thoroughly mixed blend of polymer matrix, ionic liquid and solvent was deposited on a ceramic substrate and was kept at a certain temperature for a specific time in order to achieve varying crystallinity. The morphology of all the electrolytes consists of spherulites whose average diameter increases with solvent evaporation rate. Raman mapping shows that these spherulites have a semicrystalline structure and the area between them is an amorphous region. Analysis of FTIR spectra as well as Raman spectroscopy showed that the beta-phase becomes dominant over other phases, while DSC technique indicated decrease of crystallinity as the solvent evaporation rate increases. XPS and ToF-SIMS indicated that the chemical composition of the surface of the SPE samples with the highest solvent evaporation rate approaches the composition of the ionic liquid.
    WorkplaceInstitute of Physics of Materials
    ContactYvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
    Year of Publishing2022
    Electronic addresshttps://www.mdpi.com/2073-4360/13/16/2678
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.