Ionic Conductivity Studies on Magnesium-Based Cellulose Acetate Polymer Gel Electrolytes

• DOI: 10.24191/srj.v12i2.5428
• Publication Date: 2019-03-15T10:24:49Z
• Authors: Aniza Omar; Siti Zafirah Zain...; Ainnur Sherene Ka...; Siti Irma Yuana S...; Ab Malik Marwan Afi; Muhd Zu Azhan Yahya
• Keywords: Magnesium acetate; Cellulose acetate; Diethyl carbonate; Trifluoromethanesulfonate

Magnesium-based polymer gel electrolytes consist of magnesium triflate (MgTf) salt, a mixture ethylene carbonate (EC) and diethyl (DEC) solvents as well cellulose acetate polymeric agent were prepared via direct dissolution method. The highest ionic conductivity obtained for MgTf-EC:DEC(1: 1) liquid was 2.66 x 10-3 S cm-1 enhanced to 2.73 with the addition acetate. These results in agreement activation energy lowest value 0.11. best explanation on enhancement PGE is due "breathing chain model". plots conductivity-temperature shown obey an Arrhenius rule. electrical properties sample analyzed using permittivity-based frequency temperature dependence range 100 Hz-1 MHz 303-373K, respectively. variation dielectric permittivity (er ei) function at different temperatures exhibited decays higher frequencies dispersive behavior low frequencies. Based observed properties, it can be infe"ed that this electrolyte could promising candidate electrochemical devices.