Effect of 1-Ethyl-3-Methylimidazolium Nitrate on the Electrical Properties of Starch/Chitosan Blend Polymer Electrolyte

Abstract:

Solid polymer electrolyte (SPE) can be viewed as an alternative of conventional liquid electrolyte since it is easier to handle. Previous Solid polymer electrolyte (SPE) can be viewed as an alternative of conventional liquid electrolyte since it is easier to handle. In the present work, starch/chitosan-ammonium nitrate (NH₄NO3) SPE has been prepared by solution casting technique. Different amount of 1-ethyl-3-methylimidazolium nitrate ([EMIM][NO₃]) was added to the sample. Ionic conductivity analysis was conducted over a wide range of frequency between 50 Hz-1 MHz using impedance spectroscopy to evaluate the dielectric properties and conductivity of the sample. Sample with 15 wt% of [EMIM][NO₃] has shown the highest conductivity of 7.36 x 10^-5 S cm^-1 at room temperature. Complex permittivity for real (ε_r), imaginary (ε_i) and electrical modulus for real (M_r) and imaginary (M_i) part was determined and plotted.

• Periodical: Materials Science Forum (Volume 846)
• Pages: 510-516
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.846.510
• Online since: March 2016
• Authors: Azwani Sofia Ahmad Khiar*, M.R.S. Anuar, M.A. Md Parid
• Keywords: [EMIM][NO₃], Chitosan, Conductivity, Starch

References

[1] C. A. C. Sequeira, M. D. F. Santos, Introduction to Polymer Electrolyte Materials, in: C. Sequeira and D. Santos (Eds), Polymer Electrolytes: Fundamentals and Applications, Woodhead Publishing Limited, Cambridge, 2010, pp.1-11.

DOI: 10.1533/9781845699772.1.3

[2] S.A. Hashmi, Supercapacitors: An Emerging Power Source, Natl. Acad. Sci. Letter 27 (2004) 27-46.

[3] A. S. A. Khiar, R. Puteh, A. K. Arof, Conductivities Studies of a Chitosan-Based Polymer Electrolyte, Physica B 373 (2006) 23-27.

DOI: 10.1016/j.physb.2005.10.104

[4] Jie, R., Hongye, F., Tianbin, R., Weizhong, Y., Preparation, Characterization and Properties of Binary and Ternary Blends with Thermoplastic Starch, Poly(Lactic Acid) and Poly(Butylene Adipate-Co-Terephtalate), Carbohyd. Polym. 77 (2009) 576-582.

DOI: 10.1016/j.carbpol.2009.01.024

[5] M. Yamagata, K. Soeda, S. Ikebe, S. Yamazaki, M. Ishikawa, Chitosan-Based Gel Electrolyte Containing an Ionic Liquid for High-Performance Nonaqueous Supercapacitors, Electrochim. Acta (2012) 1-6.

DOI: 10.1016/j.electacta.2012.05.073

[6] M. J. A. Shiddiky, A. A. J. Torriero, Application of Ionic Liquids in Electrochemical Sensing Systems, Biosens. Bioelectron. 26 (2011) 1775-1787.

DOI: 10.1016/j.bios.2010.08.064

[7] W. Lu, K. Henry, C. Turchi, J. Pellegrino, Incorporating Ionic Liquid Electrolytes into Polymer Gels for Solid-State Ultracapacitors, J. Electrochem. Soc. 155(5) (2008) 361-367.

DOI: 10.1149/1.2869202

[8] P. Wassersoheid, T. Welton, Ionic Liquids in Synthesis, Wiley-VCH Verlog GmbH & Co. Weiheim, (2003).

[9] A. S. A. Khiar, A. K. Arof, Electrical Properties of Starch/Chitosan-NH4NO3, WASET 59 (2011) 23-27.

[10] A. S. Samsudin, W. Khairul, M. I. N. Isa, Characterization on the Potential of Carboxyl Methylcellulose for Application as Proton Conducting Biopolymer Electrolytes, J. Non-Cryst. Solids 358 (2011) 1104-1112.

DOI: 10.1016/j.jnoncrysol.2012.02.004

[11] M. L. H. Rozali, A. S. Samsudin, M. I. N. Isa, Ion Conducting Mechanism of Carboxy Methylcellulose Doped With Ionic Dopant Salicylic Acid Based Solid Polymer Electrolytes, Int. J. Appl. Sci. Tech. 2(4) (2012) 113-121.

[12] A. S. Samsudin, M. I. N. Isa, Structural and Ionic Transport Study on Carboxyl Methylcellulose Doped NH4Br: New Type of Biopolymer electrolytes, J. Appl. Sci. 12 (2) (2012) 174-179.

DOI: 10.3923/jas.2012.174.179

[13] M. Z. A. Yahya, A. K. Arof, Effect of Oleic Acid Plasticizer on Chitosan–Lithium Acetate Solid Polymer Electrolytes, Eur. Polym. J. 39 (2003) 897-902.

DOI: 10.1016/s0014-3057(02)00355-5

[14] Z. Yue, J. M. G. Cowie, Synthesis and Characterization of Ion Conducting Cellulose Esters with PEO Side Chains, Polymer 43 (2002) 4453–4460.

DOI: 10.1016/s0032-3861(02)00284-7

[15] N.K. Idris, N.A. N Aziz, M.S. M Zambri, N. A Zakaria, M.I.N. Isa, Ionic Conductivity Studies of Chitosan-Based Polymer Electrolytes Doped with Adipic Acid, Ionics 15 (2009) 643-646.

DOI: 10.1007/s11581-009-0318-4

[16] D. R. MacFarlane, P. Meakin, A. Bishop, D. McNaughton, J. M. Rosalie, M. Forsyth, FTIR Study of Ion-Pairing Effects in Plasticized Polymer Electrolytes, Electrochim. Acta 40 (1995) 2333–2337.

DOI: 10.1016/0013-4686(95)00188-k

[17] D.K. Pradhan, R. N. P. Choudhary, B. K. Samantaray, Studies of Dielectric Relaxation and AC Conductivity Behaviour of Plasticized Polymer Nanocomposite Electrolytes, Int. J. Electrochem. Sci. 3 (2008) 597 - 608.

DOI: 10.1016/s1452-3981(23)15547-7