Correlated barrier hopping and ionic conduction mechanism in glycolic acid-doped Alginate-PVA biopolymer electrolytes

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2024-12-13 DOI:10.1016/j.cap.2024.12.005

N.M. Ghazali, A.S. Samsudin

引用次数: 0

Abstract

This study examines the electrical and dielectric properties of solid polymer electrolytes (SPEs) based on an alginate-PVA blend doped with glycolic acid (GA). The AC conductivity as a function of frequency was observed to conform to Jonscher's power law. The dielectric permittivity, dielectric loss, and complex conductivity were analyzed and fitted across a frequency range of 1 Hz to 1 MHz at room temperature. It was found that an increase in GA content directly enhances the number of charge carrier (ŋ), ionic mobility (μ), and diffusion coefficient (D) of the SPEs system. The frequency exponent (s) was calculated and the correlated barrier hopping (CBH) model was used to explain the behaviour of the s value with temperature.

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乙醇酸掺杂海藻酸-聚乙烯醇生物聚合物电解质的相关垒跳和离子传导机制

本研究考察了海藻酸-聚乙烯醇共混物掺杂乙醇酸（GA）的固体聚合物电解质（spe）的电学和介电性能。交流电导率作为频率的函数被观察到符合Jonscher幂定律。在1 Hz至1 MHz的频率范围内，对室温下的介电常数、介电损耗和复合电导率进行了分析和拟合。结果表明，GA含量的增加直接提高了SPEs体系的载流子数(k)、离子迁移率（μ）和扩散系数(D)。计算了频率指数(s)，并用相关跳垒（CBH）模型解释了s值随温度的变化规律。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.