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首页> 外文期刊>Chemistry: A European journal >NiCoP Nanoarray: A Superior Pseudocapacitor Electrode with High Areal Capacitance
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NiCoP Nanoarray: A Superior Pseudocapacitor Electrode with High Areal Capacitance

机译：Nicop NanoArray：具有高面积电容的优越的伪涂布电极

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摘要

High-performance supercapacitors require the design and development of electrode materials with high conductivity and a large electrolyte-accessible surface area. Here, the use of a conductive NiCoP nanoarray on nickel foam (NiCoP/NF) as a superior pseudocapacitor electrode is demonstrated. This 3D electrode exhibits high areal capacitances of 9.2 and 5.97 Fcm~(-2) at current densities of 2 and 50 mAcm~(-2), respectively, with good rate capability and cycling stability. The asymmetric supercapacitor (ASC) device assembled using NiCoP/NF as positive electrode and active carbon as negative electrode delivers a high energy density of 1.16 mWhcm~(-2) at a power density of 1.6 mWcm~(-2) with 72% retention of its initial specific capacitance after 2000 cycles at 50 mAcm~(-2). The practical use is further demonstrated with two such ASC devices in series to light six LED indicators and also to drive an alkaline water electrolyzer using NiCoP/NF as both cathode and anode for hydrogen production.
机译：高性能超级电容器需要具有高导电性和大电解质可接近的表面积的电极材料的设计和开发。这里，证明了在镍泡沫（NiCOP / NF）上用作优质假偶联机电极的导电NiCOP纳米阵列。该3D电极分别在2和50mmm〜（-2）的电流密度下具有9.2和5.97fcm〜（-2）的高面积电容，具有良好的速率能力和循环稳定性。使用Nicop / NF组装为正极和活性炭作为负电极的非对称超电容器（ASC）装置以1.6 mWcm〜（-2）的功率密度为1.6 mwmc〜（-2）的高能量密度提供72％的保留2000次循环以50 macm〜（-2）后的初始特定电容。通过串联的两个这样的ASC设备进一步证明了实际用途，以轻六个LED指示灯，并使用Nicop / NF作为阴极和阳极驱动碱性水电解槽，用于氢气产生。

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  • 来源
    《Chemistry: A European journal》 |2017年第18期|共7页
  • 作者

    Menglai Kong; Zao Wang; Weiyi Wang; Min Ma; Danni Liu; Shuai Hao; Rongmei Kong; Gu Du; Abdullah M. Asiri; Yadong Yao; Xuping Sun;

  • 作者单位

    College of Materials Science and Engineering Sichuan University Chengdu 610065 Sichuan (P. R. China);

    College of Chemistry Sichuan University Chengdu 610064 Sichuan (P. R. China);

    College of Materials Science and Engineering Sichuan University Chengdu 610065 Sichuan (P. R. China);

    College of Materials Science and Engineering Sichuan University Chengdu 610065 Sichuan (P. R. China);

    College of Chemistry Sichuan University Chengdu 610064 Sichuan (P. R. China);

    College of Chemistry Sichuan University Chengdu 610064 Sichuan (P. R. China);

    College of Chemistry and Chemical Engineering Qufu Normal University Qufu 273165 Shandong (P. R. China);

    Chengdu Institute of Geology and Mineral Resources Chengdu 610081 Sichuan (P. R. China);

    Chemistry Department King Abdulaziz University Jeddah 21589 (Saudi Arabia);

    College of Materials Science and Engineering Sichuan University Chengdu 610065 Sichuan (P. R. China);

    College of Chemistry Sichuan University Chengdu 610064 Sichuan (P. R. China);

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

    electrochemistry; high areal capacitance; multifunctional; NiCoP nanoarray; supercapacitors;

    机译：电化学;高面积电容;多功能;Nicop Nanoarray;超级电容器;

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