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Isomorphism combined with intercalation methods to construct a hybrid electrode material for high-energy storage capacitors

机译:同构与插入方法相结合,构建用于高储能电容器的混合电极材料

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摘要

High-performance electrode materials were obtained by isomorphism and intercalation methods, resulting in multi-types of redox reaction centers and a bridge for charge transfer. Some of the Co ions (clusters) were replaced by Ni ions with little difference in radius and different types of redox reactions were constructed. At the same time, the introduction of 2-methylbenzimidazole in the intercalation of two-dimensional (2D) Ni/Co-MOF accelerated the charge transfer. The synthetic composite electrode material exhibited high specific capacitance of 2422.7 F g(-1) at a current density of 1.0 A g(-1) in three systems and cycle retention of 86% after 3000 cycles. An asymmetric supercapacitor device assembled with the composite material and activated carbon exhibited a maximum energy density of 82.8 W h kg(-1) at a power density of 700 W kg(-1), showing that the composite has good potential application value.
机译:通过同构和插层方法获得高性能电极材料,导致多种氧化还原反应中心和用于电荷转移的桥梁。 将一些Co离子(簇)由Ni离子差异呈半径差异,并且构建不同类型的氧化还原反应。 同时,在二维(2D)Ni / Co-MOF的插层中引入2-甲基双咪唑加速了电荷转移。 合成复合电极材料在三个系统中的电流密度为1.0Ag(-1)的电流密度,在3000次循环后的循环保留为86%的循环保留,其具有高比电容为2422.7fg(-1)。 与复合材料和活性炭组装的不对称超电容器装置以700Wkg(-1)的功率密度,最大能量密度为82.8Wh kg(-1),显示复合材料具有良好的潜在应用值。

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    Northwest Normal Univ Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Coll Chem &

    Chem Engn Lanzhou 730070 Gansu Peoples R China;

    Northwest Normal Univ Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Coll Chem &

    Chem Engn Lanzhou 730070 Gansu Peoples R China;

    Northwest Normal Univ Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Coll Chem &

    Chem Engn Lanzhou 730070 Gansu Peoples R China;

    Northwest Normal Univ Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Coll Chem &

    Chem Engn Lanzhou 730070 Gansu Peoples R China;

    Northwest Normal Univ Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Coll Chem &

    Chem Engn Lanzhou 730070 Gansu Peoples R China;

    Northwest Normal Univ Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Coll Chem &

    Chem Engn Lanzhou 730070 Gansu Peoples R China;

    Northwest Normal Univ Key Lab Bioelectrochem &

    Environm Anal Gansu Prov Key Lab Ecoenvironm Related Polymer Mat MOE Coll Chem &

    Chem Engn Lanzhou 730070 Gansu Peoples R China;

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  • 正文语种 eng
  • 中图分类 工程材料学;
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