Effect of Nanosized Al2O3 Dispersion on the Structural and Electrochemical Properties of PMMA/TEGDME-Based Mg-Ion Conducting Polymer Gel Electrolyte

IF 2.2 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electronic Materials Pub Date : 2024-10-24 DOI:10.1007/s11664-024-11511-0

Poonam, Suman B. Kuhar, Maitri Patel, C. Maheshwaran, Kuldeep Mishra, D. K. Kanchan, A. Annalakshmi, Naveen K. Acharya, Deepak Kumar

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引用次数: 0

Abstract

A poly(methylmethacrylate)-based Mg-ion conducting polymer gel electrolyte immobilizing a liquid electrolyte of magnesium perchlorate in tetraethylene glycol dimethyl ether (TEGDME) solvent is presented. In order to enhance the electrolytic properties of the electrolyte, the impact of aluminum oxide (Al₂O₃) nanoparticles on the structural, thermal, and electrochemical properties has been investigated. The optimized composition of the polymer gel electrolyte (PMMA + TEGDME + MgClO₄ + 2.5 wt% Al₂O₃) showed increased ionic conductivity of 4.94 × 10⁻⁵ S cm⁻¹ with a significantly low activation energy of 0.18 eV. Ion dynamics in the polymer gel electrolyte have been quantitatively analyzed by investigating various frequency-dependent parameters such as the real and imaginary components of dielectric permittivity, loss tangent, and the modulus. The possible conformational changes in the electrolyte system on addition of Al₂O₃ nanoparticles have been investigated by x-ray diffraction (XRD), Fourier-transform infrared (FTIR) analysis, and differential scanning calorimetry (DSC). These studies have revealed CH₃-Mg-Al₂O₃ interaction in the electrolyte with significantly affected crystallinity and sufficient gel phase range with variation in temperature.

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纳米级 Al2O3 分散对基于 PMMA/TEGDME 的镁离子导电聚合物凝胶电解质的结构和电化学性质的影响

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.