Ionic conductivity and diffusion coefficient of barium-chloride-based polymer electrolyte with poly(vinyl alcohol)–poly(4-styrenesulphonic acid) polymer complex
 作者： Mayank Pandey,  Girish M Joshi,  Narendra Nath Ghosh 作者单位： 1VIT University2Birla Institute of Technology and Science 刊名： Bulletin of Materials Science, 2017, Vol.40 (4), pp.655-666 来源数据库： Springer Nature Journal DOI： 10.1007/s12034-017-1430-0 关键词： Polymer electrolytes;  Impedance spectroscopy;  Diffusion coefficient;  Ionic conductivity; 原始语种摘要： A composite polymer electrolyte comprising poly(vinyl alcohol)–poly(4-styrenesulphonic acid) with barium chloride dihydrate ( $$\hbox {BaCl}_{2}{\cdot } 2\hbox {H}_{2}\hbox {O}$$ ) salt complex has been synthesized following the usual solution casting. The ionic conductivity of polymer electrolyte was analysed by impedance spectroscopy. The highest room temperature (at 30 $${^{\circ }}$$ C) conductivity evaluated was 9.38 $$\times$$ 10 $$^{-6}$$ S cm $$^{-1}$$ for 20 wt% loading of $$\hbox {BaCl}_{2}$$ in the polymer electrolyte. This has been referred to as the optimum conducting composition. The temperature-dependent ionic conductivity of the polymer electrolyte exhibits the Arrhenius relationship, which represents the hopping of ions in polymer composites. Cation and anion diffusion... coefficients are evaluated using the Trukhan model. The transference number and enhanced conductivity imply that the charge transportation is due to ions. Therefore this polymer electrolyte can be further studied for the development of electrochemical device applications.

• vinyl alcohol　乙烯醇
• conductivity　传导率
• poly
• electrolyte　电解液
• barium
• complex　超群
• coefficient　系数
• diffusion　扩散
• composites　菊科植物
• chloride　氯化物