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首页> 外文期刊>Applied Surface Science >Synthesis of polyanilineickel oxide/sulfonated graphene ternary composite for all-solid-state asymmetric supercapacitor
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Synthesis of polyanilineickel oxide/sulfonated graphene ternary composite for all-solid-state asymmetric supercapacitor

机译：全固态不对称超微普及聚苯胺/氧化镍/磺化石墨烯三元复合材料的合成

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摘要

The preparation of a structurally optimized electrode material plays an important role in the energy application of the supercapacitor. Here, we report that an electrode assembly composed of a ternary material has a unique microstructure and excellent electrochemical performance. Our supercapacitor electrodes consist of sulfonated graphene (SGO) as a substrate, a well-dispersed metal oxide (NiO) and a polymer (PANI) that provides more surface area. Hydrothermal and chemical oxidative polymerization methods are used to formulate the core-shell structure composed of the aforementioned three materials, and the synergistic effect improves the performance of supercapacitors, including high specific capacitance and excellent cycle stability. The PANI/NiO/SGO (2:1) ternary composite has a high specific capacitance of 1350 F g(-1) at a current density of 1 A g(-1) and a capacity retention rate of 92.23% after 5000 cycles. The prepared all-solid states asymmetric supercapacitor PANI/NiO/SGO//Active Carbon (AC) has a high specific capacity of 308.8 F g(-1), high energy density (109.8 Wh kg(-1)), high power density (0.8 kW kg(-1)) and stable cycle life (capacitor retention rate is 91.15% after 10,000 cycles), while a green LED indicator is illuminated.
机译：在结构上优化的电极材料的制备在超级电容器的能量应用中起着重要作用。这里，我们报告说，由三元材料组成的电极组件具有独特的微观结构和优异的电化学性能。我们的超级电容器电极由磺化石墨烯（SGO）作为基材，分散良好分散的金属氧化物（NIO）和提供更多表面积的聚合物（PANI）。水热和化学氧化聚合方法用于配制由上述三种材料组成的芯壳结构，协同效应提高了超级电容器的性能，包括高比电容和优异的循环稳定性。 PANI / NIO / SGO（2：1）三元复合材料的高比电容为1350 f G（-1），电流密度为1Ag（-1），5000次循环后的容量保持率为92.23％。制备的全固态态不对称超级电容器PANI / NIO / SGO //活性炭（AC）具有308.8f g（-1），高能量密度（109.8WH（-1）），高功率密度的高特定容量（0.8 kW kg（-1））和稳定的循环寿命（电容器保持率为91.15％，在10,000个循环后），而绿色LED指示灯被照亮。

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  • 来源
    《Applied Surface Science》 |2020年第1期|144589.1-144589.11|共11页
  • 作者

    Huang Chengxiang; Hao Chen; Zheng Wanhao; Zhou Saisai; Yang Lingze; Wang Xiaohong; Jiang Chenglong; Zhu Linli;

  • 作者单位

    Jiangsu Univ Sch Chem & Chem Engn Zhenjiang 212013 Jiangsu Peoples R China;

    Jiangsu Univ Sch Chem & Chem Engn Zhenjiang 212013 Jiangsu Peoples R China;

    Jiangsu Univ Sch Chem & Chem Engn Zhenjiang 212013 Jiangsu Peoples R China;

    Jiangsu Univ Sch Chem & Chem Engn Zhenjiang 212013 Jiangsu Peoples R China;

    Jiangsu Univ Sch Chem & Chem Engn Zhenjiang 212013 Jiangsu Peoples R China;

    Jiangsu Univ Sch Chem & Chem Engn Zhenjiang 212013 Jiangsu Peoples R China;

    Jiangsu Univ Sch Chem & Chem Engn Zhenjiang 212013 Jiangsu Peoples R China;

    Jiangsu Univ Sch Chem & Chem Engn Zhenjiang 212013 Jiangsu Peoples R China;

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

    Sulfonated graphene; NiO; Energy storage; Cycle stability; Asymmetric supercapacitor;

    机译：磺化石墨烯;NIO;能量存储;循环稳定性;非对称超级电容器;

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