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A systematic study of the co-solvent effect for an all-organic redox flow battery

机译:对全有机氧化还原电池的共溶剂效应的系统研究

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摘要

Benzophenone and 1,4-di-tert-butyl-2,5-dimethoxybenzene are used as the anode and cathode active species respectively in an all-organic redox-flow battery. A number of organics as the co-solvents are applied in the electrolyte to improve the electrochemical performance of it. For all kinds of the mixed solvents, a lower content of acetonitrile leads to a higher solubility to 1,4-di-tert-butyl-2,5-dimethoxybenzene and a lower conductivity. The results of cyclic voltammetry tests demonstrate that the electrode reactions are controlled by diffusion. With the decrease of the content of acetonitrile, the dynamic viscosity of the electrolyte increases, which generally leads to the decrease of the diffusion coefficients of the active species.
机译:二苯甲酮和1,4-二叔丁基-2,5-二甲氧基苯分别用作全有机氧化还原电池中的阳极和阴极活性物质。 作为共溶剂的许多有机物施用于电解质中以改善其电化学性能。 对于各种混合溶剂,乙腈的较低含量导致较高的溶解度至1,4-二叔丁基-2,5-二甲氧基苯和较低的导电性。 循环伏安测定的结果表明电极反应是通过扩散控制的。 随着乙腈含量的降低,电解质的动态粘度增加,这通常导致活性物质的扩散系数的降低。

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  • 来源
    《RSC Advances》 |2018年第43期|共6页
  • 作者单位

    Tianjin Univ State Key Lab Chem Engn Tianjin Key Lab Appl Catalysis Sci &

    Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ State Key Lab Chem Engn Tianjin Key Lab Appl Catalysis Sci &

    Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ State Key Lab Chem Engn Tianjin Key Lab Appl Catalysis Sci &

    Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ State Key Lab Chem Engn Tianjin Key Lab Appl Catalysis Sci &

    Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ State Key Lab Chem Engn Tianjin Key Lab Appl Catalysis Sci &

    Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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