Naslov
SAXS/WAXS/DSC Study of Temperature Evolution in Nanopolymer Electrolyte

Autori
Turković, Aleksandra ; Rakić, Mario ; Dubček, Pavo ; Lučić-Lavčević, Magdy ; Bernstorff, Sigrid

Izvornik
Vacuum (0042-207X) 84 (2009), 1; 68-71

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
SAXS ; WAXS ; DSC ; polymer electrolyte ; nanocomposite

Sažetak
Electrolytes as nanostructured materials are very attractive for batteries or other types of electronic devices. (PEO)8ZnCl2 polymer electrolytes and nanocomposites (PEO)8ZnCl2/TiO2 were prepared from PEO and ZnCl2 and with addition of TiO2 nanograins. The influence of TiO2 nanograins was studied by small-angle X-ray scattering (SAXS) simultaneously recorded with wide-angle X-ray scattering (WAXS) and differential scanning calorimetry (DSC) at the synchrotron ELETTRA. It was shown by previous impedance spectroscopy (IS) that the room temperature conductivity of nanocomposite polymer electrolyte increased more than two times above 65°C, relative to pure composites of PEO and salts. The SAXS/DSC measurements yielded insight into the temperature-dependent changes of the grains of the electrolyte as well as to differences due to different heating and cooling rates. The crystal structure and temperatures of melting and crystallization of the nanosize grains was revealed by the simultaneous WAXS measurements.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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