VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Structural and electrical studies of a sol-gel derived nanocomposite ionic liquid based on positively charged polysilsesquioxane and iodide
    Orel, Boris, 1943- ...
    A new sol-gel precursor, based on 1-methyl-3-š3-(trimethoxy-Ž4-silyl)propylđimidazolium iodide (MTMSPI+I-), was synthesized and investigated as a potential novel quasi-solid-state ionic liquid redox ... electrolyte for dye-sensitized photoelectrochemical cells of the Graetzel type. MTMSPI+I- was hydrolyzed with acidified water and the reaction products of the sol-gel condensation reactions were assessed with the help of 29Si NMR and infrared spectroscopic techniques, which revealed that the aged MTMSPI+I- sols consisted of a positively charged polyhedral cube-like silsesquioxane and iodidežtriiodide species. The addition of iodine increased the specific conductivity of the non-hydrolyzed and hydrolyzed MTMSPI+I-, which was attributed to the formation of triiodide ions and demonstrated from Raman spectra measurements. Steady-state voltammetric measurements at a Pt disc microelectrode, performed for the hydrolyzed MTMSPI+I- and MTMSPI+I- + I2sols, revealed changes in the apparent diffusion coefficients (Dapp) during the course of transformation of the ionic liquid from a liquid to a quasi-solid-state.
    Vir: Electrochemistry communications. - ISSN 1388-2481 (Vol. 7, no. 7, 2005, str. 692-696)
    Vrsta gradiva - članek, sestavni del
    Leto - 2005
    Jezik - angleški
    COBISS.SI-ID - 3282970

Vnos na polico