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首页> 外文期刊>International journal of hydrogen energy >Investigation on favourable ionic conduction based on CMC-K carrageenan proton conducting hybrid solid bio-polymer electrolytes for applications in EDLC
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Investigation on favourable ionic conduction based on CMC-K carrageenan proton conducting hybrid solid bio-polymer electrolytes for applications in EDLC

机译：基于CMC-K-角叉菜胶质子传导杂化固体生物聚合物电解质在EDLC中的有利离子传导研究

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摘要

In the present work, a proton-conducting hybrid solid biopolymer electrolytes (HSBEs) system was successfully prepared via the solution casting approached. The HSBEs comprised of CMC blended with kappa carrageenan and doped with NH4NO3. The HSBEs system was characterized to evaluate the structural and the proton conduction properties using FTIR, XRD and EIS techniques. The FTIR analysis showed that a complexation occurred between the CMC-KC and H+ moiety of the NH4NO3 via the -OH, C-O-C as well as -COO- groups with associated changes observed to their wavenumbers and peak intensities. At the 80:20 ratio of the CMC:KC hybrid system, the optimum value of the ionic conductivity was found to be similar to 10(-7) S/cm. However, the addition of 30 wt % of NH4NO3 to the system markedly increased the ionic conductivity to similar to 10(-4) S/cm due to the increase in the amorphous phase in the HSBEs system as revealed by the XRD analysis. Meanwhile, the IR-deconvolution approach revealed an increase of the protonation (H+) from NH4NO3 towards the co-ordinating site on the hybrid CMC-KC system and this in turn, led to the increment in the ionic mobility and diffusion of ions for transportation. An EDLC was fabricated using the highest conducting HSBEs sample developed in the present study and it exhibited favourable characteristics as a capacitor with a reasonably good stability with regards to its electrochemical properties. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译：在目前的工作中，通过溶液浇铸成功地制备了质子传导混合固体生物聚合物电解质（HSBE）系统。 HSBE由CMC和Kappa卡拉胶混合而成，并掺有NH4NO3。 HSBEs系统的特征是使用FTIR，XRD和EIS技术评估结构和质子传导性能。 FTIR分析表明，CMC-KC与NH4NO3的H +部分之间通过-OH，C-O-C和-COO-基发生了络合，并观察到其波数和峰强度的相关变化。在CMC：KC混合系统的比例为80:20时，发现离子电导率的最佳值类似于10（-7）S / cm。但是，由于XRD分析表明HSBEs系统中非晶相的增加，向系统中添加30 wt％的NH4NO3明显提高了离子电导率，使其接近10（-4）S / cm。同时，红外解卷积方法揭示了从NH4NO3到混合CMC-KC系统上配位点的质子化（H +）的增加，这反过来导致离子迁移率的增加和离子的扩散以进行运输。 EDLC是使用本研究中开发的导电性最高的HSBEs样品制成的，它作为电容器表现出了良好的特性，就其电化学性能而言，具有相当好的稳定性。 （C）2020 Hydrogen Energy Publications LLC。由Elsevier Ltd.出版。保留所有权利。

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  • 来源
    《International journal of hydrogen energy》 |2020年第15期|8727-8741|共15页
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  • 作者单位

    Univ Malaysia Pahang Fac Ind Sci & Technol Ion Mat Team Pahang 26300 Malaysia;

    Univ Malaysia Pahang Fac Ind Sci & Technol Ion Mat Team Pahang 26300 Malaysia|Int Islamic Univ Malaysia Ctr Fdn Studies Dept Chem Gambang 26300 Pahang Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hybrid polymer; H+ carrier; Ionic conductivity; Electrochemical properties;

    机译：杂化聚合物;H +载体;离子电导率;电化学性质;

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