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首页> 外文期刊>Advanced energy materials >Inverted Design for High-Performance Supercapacitor Via Co(OH)(2)-Derived Highly Oriented MOF Electrodes
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Inverted Design for High-Performance Supercapacitor Via Co(OH)(2)-Derived Highly Oriented MOF Electrodes

机译：通过Co（OH）（2）衍生的高取向MOF电极实现高性能超级电容器的反向设计

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摘要

Metal organic frameworks (MOFs) are considered as promising candidates for supercapacitors because of high specific area and potential redox sites. However, their shuffled orientations and low conductivity nature lead to severely-degraded performance. Designing an accessibly-manipulated and efficient method to address those issues is of outmost significance for MOF application in supercapacitors. It is the common way that MOFs scarify themselves as templates or precursors to prepare target products. But to reversely think it, using target products to prepare MOF could be the way to unlock the bottleneck of MOFs' performance in supercapacitors. Herein, a novel strategy using Co(OH)(2) as both the template and precursor to fabricate vertically-oriented MOF electrode is proposed. The electrode shows a double high specific capacitance of 1044 Fg(-1) and excellent rate capability compared to MOF in powder form. An asymmetric supercapacitor was also fabricated, which delivers a maximum energy density of 28.5 W h kg(-1) at a power density of 1500 W kg(-1), and the maximum of 24000 W kg(-1) can be obtained with a remaining energy density of 13.3 W h kg(-1). Therefore, the proposed strategy paves the way to unlock the inherent advantages of MOFs and also inspires for advanced MOF synthesis with optimum performance.
机译：金属有机骨架（MOF）由于具有高的比表面积和潜在的氧化还原位点而被认为是超级电容器的有希望的候选者。但是，它们的混洗方向和低导电性导致其性能严重下降。设计一种可操作且有效的方法来解决这些问题，对于MOF在超级电容器中的应用至关重要。 MOF经常将其自己作为模板或前体以制备目标产品的方式来消除。但是反过来说，使用目标产品准备MOF可能是释放MOF在超级电容器中性能瓶颈的方法。在此，提出了一种以Co（OH）（2）为模板和前驱体制备垂直取向MOF电极的新策略。与粉末形式的MOF相比，该电极表现出双倍的1044 Fg（-1）的高比电容和出色的倍率能力。还制造了一种不对称超级电容器，该超级电容器在1500 W kg（-1）的功率密度下可提供28.5 W h kg（-1）的最大能量密度，而在这种情况下可获得的最大24000 W kg（-1）。剩余能量密度为13.3 W h kg（-1）。因此，所提出的策略为释放MOF的固有优势铺平了道路，也为具有最佳性能的先进MOF合成提供了灵感。

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  • 来源
    《Advanced energy materials》 |2018年第7期|1702294.1-1702294.7|共7页
  • 作者

    Deng Ting; Lu Yue; Zhang Wei; Sui Manling; Shi Xiaoyuan; Wang Dong; Zheng Weitao;

  • 作者单位

    Jilin Univ, State Key Lab Automot Simulat & Control, Dept Mat Sci, Changchun 130012, Jilin, Peoples R China|Jilin Univ, Key Lab Mobile Mat MOE, Changchun 130012, Jilin, Peoples R China;

    Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China;

    Jilin Univ, State Key Lab Automot Simulat & Control, Dept Mat Sci, Changchun 130012, Jilin, Peoples R China|Jilin Univ, Key Lab Mobile Mat MOE, Changchun 130012, Jilin, Peoples R China|CIC Energigune, Parque Tecnol Alava, Minano 01510, Spain|Basque Fdn Sci, Ikerbasque, Bilbao 48013, Spain;

    Beijing Univ Technol, Inst Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China;

    Jilin Univ, State Key Lab Automot Simulat & Control, Dept Mat Sci, Changchun 130012, Jilin, Peoples R China|Jilin Univ, Key Lab Mobile Mat MOE, Changchun 130012, Jilin, Peoples R China;

    Jilin Univ, State Key Lab Automot Simulat & Control, Dept Mat Sci, Changchun 130012, Jilin, Peoples R China|Jilin Univ, Key Lab Mobile Mat MOE, Changchun 130012, Jilin, Peoples R China;

    Jilin Univ, State Key Lab Automot Simulat & Control, Dept Mat Sci, Changchun 130012, Jilin, Peoples R China|Jilin Univ, Key Lab Mobile Mat MOE, Changchun 130012, Jilin, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Co(OH)(2); energy power density; MOF; orientation; supercapacitors;

    机译：Co（OH）（2）;能量密度;MOF;取向;超级电容器;

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