Electrical Properties of A Novel Solid Biopolymer Electrolyte based on Algi-nate Incorporated with Citric Acid

Abstract

In the present study, a novel solid biopolymer electrolyte (SBE) system is introduced by doping citric acid into alginate polymer. A sample of the alginate-citric acid SBE system was prepared via a solution casting technique. Using electrical impedance spectroscopy (EIS), the electrolytes of alginate-citric acid analyzed from 5 Hz to 1 MHz achieved the highest conductivity at 20 wt.% of 5.49 × 10 -7 S cm -1 . The temperature dependence of various citric acid amounts obeyed the Arrhenius rule with R 2~1 , where all SBE systems were thermally activated with increasing temperature. The dielectric studies of the alginate-citric acid SBE system showed non-Debye behavior based on data measured using complex permittivity (ε*) and complex electrical modulus (M*) at selected temperature, where no single relation was found in the new biopolymer electrolyte system. AbstractKarakterisasi Sifat-Sifat Listrik pada Alginat Berbasis Elektrolit Biopolimer Padat Baru yang Dimasukkan dengan Asam Sitrat. Di dalam studi kali ini, suatu sistem elektrolit biopolimer padat (SBE) baru telah diperkenalkan dengan mendoping asam sitrat ke dalam polimer alginat. Sampel sistem SBE alginat-asam sitrat dibuat melalui teknik pengecoran larutan. Dengan menggunakan Spektroskopi Impedansi Listrik (Electrical Impedance Spectroscopy (EIS)), elektrolit-elektrolit alginat-asam sitrat telah dianalisis dari 5 Hz sampai 1 MHz mencapai nilai konduktivitas tertinggi pada 20% berat sebesar 5,49 x 10-7 S cm-1. Ketergantungan temperatur berbagai komposisi asam sitrat terbukti mentaati aturan Arrhenius dengan R2~1 di mana semua sistem SBE diaktifkan secara termal ketika menaikkan temperatur. Studi-studi dielektrik tentang sistem SBE alginat-asam sitrat menunjukkan suatu perilaku non-debye berdasarkan pada data yang diukur dengan menggunakan permitivitas kompleks (ε*) dan modulus listrik kompleks (M*) pada temperatur yang dipilih di mana tidak ditemukan adanya hubungan tunggal di dalam sistem elektrolit biopolimer baru.

Sodium Alginate Doped with Magnesium Perchlorate as Solid Biopolymer Electrolytes for Energy Storage Applications

“…reported 1.80 V for Alginate with LiBr. [ 20 ] For Tamarind seed polysaccharide doped with Magnesium perchlorate possess the electrochemical stability is 2.85 V reported by Perumal et al. and 3.58 V for Cellulose acetate doped with Magnesium per chlorate reported by Mahalakshmi et al.…”

“…Infanta Diana et al have described the electrochemical stability value of Sodium alginate with Sodiumthocyanide (NaSCN) polymer electrolyte has 2.7 V. [26] Fuzlin et al reported 1.80 V for Alginate with LiBr. [20] For Tamarind seed polysaccharide doped with Magnesium per- chlorate possess the electrochemical stability is 2.85 V reported by Perumal et al and 3.58 V for Cellulose acetate doped with Magnesium per chlorate reported by Mahalakshmi et al [15,27]…”

Study on Electrical Conduction Properties of Plasticized CMC-DTAB Based Solid Biopolymer Electrolytes

“…Moreover, both dielectric constant and dielectric loss were drastically decreasing when frequency was increased. This situation can be explained due to rapid reversal process of electric field gives less or no time for the mobile ions to diffuse and migrate, indicated a non-Debye behaviour with no single relaxation time [17]. The constant value of dielectric permittivity at high frequency is believed due to periodic reversal of the field occurring so quickly that the charge carriers were distressed to orient themselves in the field direction, in turn leading to a decrement in the dielectric constant and dielectric loss [16].…”

Conduction Properties Study on Alginate Incorporated with Glycolic Acid Based Solid Biopolymer Electrolytes

“…It revealed that both the dielectric constant and dielectric loss increases with increasing in temperature. This phenomenon can be described as the temperature increases, the degree of GA dissociation to released H + and hoping to alginate polymer has increased thus lead to the increment of ionic conductivity at higher temperature [14,15]. A further investigation of the dielectric behavior can be more successfully achieved using an electrical modulus study that suppresses the effect of electrode polarization.…”