Ionic Conduction Mechanism of Solid Biodegradable Polymer Electrolytes Based Carboxymethyl Cellulose Doped Ammonium Thiocyanate

Abstract:

A conducting solid biodegradable polymer electrolytes based carboxymethyl cellulose (CMC) doped ammonium thiocyanate (NH₄SCN) system with concentration in the range 0 – 25 wt.% of NH₄SCN have been prepared via solution casting method. The impedance study of CMC-NH₄SCN system was measured via Electrical Impedance Spectroscopy (EIS) in the temperature range 303 K – 353 K. The highest ionic conductivity at room temperature (303 K) is 6.48 x 10^-5 Scm^-1 for sample containing 25 wt.% NH₄SCN. The temperature dependence of CMC-NH₄SCN system was found to obey the Arrhenius behaviour where the ionic conductivity increases with increase of temperature. Dielectric data were analyzed using complex permittivity, Ɛ_i for sample with the highest ionic conductivity at various temperatures and found was non Debye behavior. The conduction mechanism of the charge carrier of CMC-NH₄SCN system can be presented by quantum mechanical tunneling (QMT) model.

• Periodical: Applied Mechanics and Materials (Volumes 719-720)
• Pages: 114-118
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.719-720.114
• Online since: January 2015
• Authors: M.I.N. Isa*, Noor Azniza Mohd Noor
• Keywords: CMC-NH₄SCN System, Ionic Conductivity, Solid Biodegradable Polymer Electrolytes

References

[1] T.H. Joykumar Singh, S.V. Bhat, Bull. Mater. Sci. 26 (2003) 707-714.

[2] S. Ramesh, Koay Hang Leen, K. Kumutha, A.K. Arof. J. Spectrochimica Acta. 66 (2007) 1237-1242.

DOI: 10.1016/j.saa.2006.06.012

[3] Suh Cem Pang, Chen Lim Tay, Suk Fun Chin, Ionics. (2014).

[4] M.F. Shukur, F.M. Ibrahim, N. A. Majid, R. Ithnin, M.F.Z. Kadir, Phys. Scripta. 88 (2013) 025601.

[5] M.F.M. Othman, A.S. Samsudin, M.I.N. Isa, J. Current Engineering Research. 2 (2012) 4-8.

[6] S. Nithya, S. Selvasekarapandian, S. Karthikeyan, D. Inbavalli, S. Sikkinthar, C. Sanjeeviraja, Ionics. (2014).

DOI: 10.1007/s11581-014-1091-6

[7] M.H. Buraidah, A.K. Arof, J. Non-Crystalline Solids. 357 (2011) 3261-366.

[8] M.Z.A. Yahya, A.K. Arof, European Polymer Journal. 39 (2003) 897-902.

[9] A.S. Samsudin, M.I.N. Isa, Advanced Materials Research. 802 (2013) 194-198.

[10] A.S.A. Khiar, R. Puteh, A.K. Arof, Physica B. 373 (2006) 23-27.

[11] Z. Ahmad, M.I.N. Isa, J. Latest Research in Science & Tech. 1 (2012)70-75.

[12] M.H. Buraidah, L.P. Teo, S.R. Majid, A.K. Arof, Physica B. 404 (2009) 1373-1379.

[13] S.R. Majid , A.K. Arof, Physica B. 390 (2007) 209-215.