Ionic conductivity and dielectric studies on PVP/PEO/(NH4)2Ce(NO3)6 based solid polymer-blend electrolytes

• Published in: Bulletin of materials science Vol. 45; no. 3; p. 125
• Main Authors: Shenbagavalli, S, Muthuvinayagam, M, Revathy, M S, Sasikumar, P
• Format: Journal Article
• Language: English
• Published: Bangalore Indian Academy of Sciences 01-09-2022; Springer Nature B.V
• Subjects: Cerium ammonium nitrate; Chemistry and Materials Science; Composition; Dielectric properties; Electrode polarization; Electrolytes; Electrolytic cells; Engineering; Ethylene oxide; Fourier transforms; Fuel cells; Ion currents; Materials Science; Molten salt electrolytes; Nitrates; Polyethylene; Polymers; Protons; Room temperature; Solid electrolytes; Spectrum analysis; Vinylidene; India; Wagner polarization technique; Los tangent; Arrhenius behaviour; dielectric studies; Ionic conductivity
• ISSN: 0973-7669; 0250-4707; 0973-7669
• DOI: 10.1007/s12034-022-02713-5

In the current situation the energy demand is fulfilled due to the advancement of electrochemical devices like fuel cells, batteries, and supercapacitors. More particularly, proton ion-conducting materials give priority to electrochemical device development. In this context, proton ion-conducting PVP (poly vinylidene pyrrolidine), PEO (poly ethylene oxide), blend-based polymer electrolytes with various compositions of (NH
4
)
2
Ce (NO
3
)
6
salt are being prepared and characterized. With increasing compositions of (NH
4
)
2
Ce (NO
3
)
6
, the ionic conductivity of the polymer-blend electrolytes is increasing. The salt-containing 1.5 wt% system shows higher ionic conductivity of 2.88 × 10
–5
S cm
–1
at room temperature. The ionic conductivity of the polymer electrolytes obeys Arrhenius’s behaviour. Dielectric properties of the prepared electrolytes are also analysed. From Wagner’s polarization technique, it is confirmed that the conduction in the polymer electrolytes is predominately due to ions.