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Nitrogen-Enriched Nonporous Carbon Electrodes with Extraordinary Supercapacitance

机译：具有超强电容的富氮无孔碳电极

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摘要

Nitrogen-enriched nonporous carbon materials derived from melamine-mica composites are subjected to ammonia treatment to further increase the nitrogen content. For samples preoxidized prior to the ammonia treatment, the nitrogen content is doubled and is mainly incorporated in pyrrol-like groups. The materials are tested as electrodes for supercapacitors, and in acidic or basic electrolytes, the gravimetric capacitance of treated samples is three times higher than that of untreated samples. This represents a tenfold increase of the capacitance per surface area (3300 μFcm~(-2)) in basic electrolyte. Due to the small volume of the carbon materials, high volumetric capacitances are achieved in various electrolytic systems: 280 Fcm~(-3) in KOH, 152 Fcm~(-1) in H_2SO_4, and 92 Fcm~(-1) in tetraethylammonium tetrafluoroborate/propylene carbonate.
机译：将源自三聚氰胺-云母复合材料的富氮无孔碳材料进行氨处理，以进一步提高氮含量。对于在氨处理之前进行预氧化的样品，氮含量增加了一倍，并且主要掺入吡咯样基团中。该材料已作为超级电容器的电极进行了测试，并且在酸性或碱性电解液中，处理后的样品的重量电容比未处理的样品高三倍。这表示碱性电解液中单位表面积的电容（3300μFcm〜（-2））增加了十倍。由于碳材料的体积小，因此在各种电解系统中可实现高体积电容：KOH中为280 Fcm〜（-3），H_2SO_4中为152 Fcm〜（-1），四乙基铵中为92 Fcm〜（-1）四氟硼酸酯/碳酸亚丙酯。

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  • 来源
    《Advanced Functional Materials》 |2009年第11期|1800-1809|共10页
  • 作者

    Denisa Hulicova-Jurcakova; Masaya Kodama; Soshi Shimishi; Hiroaki Hatori; Zong Hua Zhu; Cao Qing Lu;

  • 作者单位

    ARC Centre of Excellence for Functional Nanomaterials The University of Queensland St. Lucia 4072, QLD (Australia);

    Energy Technology Research Institute National Institute of Advanced Industrial Science and Technology Onogawa 16-1, Tsukuba 305-8569, Ibaraki (Japan);

    Department of Nano-Material Systems, Gunma University Tenjincho 1-5-1, Kiryu 376-8515, Gunma (Japan);

    Energy Technology Research Institute National Institute of Advanced Industrial Science and Technology Onogawa 16-1, Tsukuba 305-8569, Ibaraki (Japan);

    School of Engineering, The University of Queensland St Lucia 4072, QLD (Australia);

    ARC Centre of Excellence for Functional Nanomaterials The University of Queensland St. Lucia 4072, QLD (Australia);

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