Electrical and complex dielectric behaviour of composite polymer electrolyte based on PEO, alumina and tetrapropylammonium iodide

Bandara, T M W J,1968Chalmers tekniska högskola,Chalmers University of Technology (författare)

In this study, the electrical, dielectric and morphological analysis of composite solid polymer electrolytes containing polyethylene oxide, alumina nano-fillers and tetrapropylammonium iodide are conducted. The temperature dependence of conductivity shows activation energy of 0.23, 0.20 and 0.29 eV for electrolytes containing 0, 5 and 15 wt.% alumina, respectively, when data fitted to the Arrhenius equation. These activation energy values are in good agreement with those determined from dielectric measurements. The result confirms the fact that conductivity is activated by both the mobility and the charge carrier density. The conductivity isotherms demonstrated the existence of two peaks, at 5 and 15 wt.% Al2O3 composition. The highest conductivity values of 2.4 × 10−4, 3.3 × 10−4 and 4.2 × 10−4 S cm−1 are obtained for the sample with 5 wt.% Al2O3 at 0, 12 and 24 °C, respectively, suggesting an enhancement of conductivity compared with that of alumina free samples.

Karunathilaka, D.G.N.University of Peradeniya (författare)
Ratnasekera, J.L.University of Colombo (författare)
Ajith de Silva, L.University of West Georgia (författare)
Herath, A.C.University of Colombo (författare)
Mellander, Bengt-Erik,1949Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)f5xrk (författare)
Chalmers tekniska högskolaUniversity of Peradeniya (creator_code:org_t)

Ingår i:Ionics: Springer Science and Business Media LLC23:7, s. 1711-17190947-70471862-0760

Av författaren/redakt...: Bandara, T M W J ...; Karunathilaka, D ...; Ratnasekera, J.L ...; Ajith de Silva, ...; Herath, A.C.; Mellander, Bengt ...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.