Dextran from Leuconostoc mesenteroides-doped ammonium salt-based green polymer electrolyte

Bulletin of Materials Science

S B AZIZ^3,4¹  M F SHUKUR^2³  M H HAMSAN^1⁴  M F Z KADIR^5⁵ 

[1] Advanced Polymeric Materials Research Lab, Department of Physics, College of Science, University of Sulaimani, Sulaimani 46001, Iraq^3;Centre for Foundation Studies in Science, University of Malaya, Kuala Lumpur 50603, Malaysia^5;Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia^2;Institute of Graduate Studies, University of Malaya, Kuala Lumpur 50603, Malaysia^1;Komar Research Center (KRC), Komar University of Science and Technology, Sulaimani 46001, Iraq^4

关键词: Biopolymer;    dextran;    ammonium nitrate;    dielectric;    ionic conductivity.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Biopolymer electrolytes based on dextran from Leuconostoc mesenteroides doped with ammonium nitrate (NH$_4$NO$_3$) are synthesized via a solution cast method. Fourier transform infrared analysis is used to determine the complexation between cation from the salt with functional groups of dextran. The ionic conductivity of undoped dextran film at room temperature is identified as $ (8.24 \pm 0.31) \times 10^{−11}$ S cm$^{−1}$. A conductivity of $(3.00 \pm 1.60) \times 10^{−5}$ S cm$^{−1}$ isachieved with the inclusion of 20 wt% NH$_4$NO$_3$ to the pure dextran film. The conductivity at a high temperature of the electrolyte obeys Arrhenius theory. Field emission scanning electron microscopy results show that the highest conducting sample has a porous surface. Results from the dielectric study show a non-Debye characteristic.

【 授权许可】

CC BY