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TiN nanosheet arrays on Ti foils for high-performance supercapacitance

机译:TIN NANOSHEET阵列上TI箔的高性能超级电容

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摘要

A simple template-free method of preparing mesoporous TiN nanostructures directly on Ti foils is developed by combining hydrothermal, ion exchange and nitridation reactions. The as-prepared TiN nanosheet arrays on Ti foils can be directly used as an electrode without any subsequent processing, and are found to be a good capacitance material. The specific capacitance of the TiN nanosheets electrode measured at the current density of 0.5 A g(-1) reaches 81.63 F g(-1), and the capacitance retention is still 75% after 4000 cycles. The symmetric supercapacitor made up of two TiN nanosheet electrodes sandwiching a solid electrolyte (polyvinyl alcohol in KOH) shows a specific capacitance of 0.42 F cm(-3), and retains 77.6% of the capacitance even at the current density of 12.5 mA cm(-3).
机译:通过组合水热,离子交换和氮化反应,开发了一种直接在Ti箔上制备中孔锡锡纳米结构的简单模板方法。 Ti箔上的AS制备的锡纳圆片阵列可以直接用作没有任何后续加工的电极,并且被发现是良好的电容材料。 在0.5Ag(-1)的电流密度下测量的锡纳米片电极的比电容达到81.63fg(-1),并且在4000个循环后电容保持仍然是75%。 由夹着固体电解质的两种锡纳芯电极(在KOH中的聚乙烯醇)组成的对称超级电容器显示出0.42 f cm(-3)的特定电容,即使在12.5 mA cm的电流密度下也保持77.6%的电容( -3)。

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  • 来源
    《RSC Advances》 |2018年第23期|共7页
  • 作者单位

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ Sch Phys Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

    Shandong Univ State Key Lab Crystal Mat Jinan 250100 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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