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首页> 外文期刊>RSC Advances >Nitrogen doped graphene paper as a highly conductive, and light-weight substrate for flexible supercapacitors
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Nitrogen doped graphene paper as a highly conductive, and light-weight substrate for flexible supercapacitors

机译：氮掺杂石墨烯纸作为高导电性和轻质基底，用于柔性超级电容器

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In this work, we fabricated a lightweight (1.25 g cm(-3)) N doped reduced graphene (N-RGO) paper through a combined method of vacuum filtration and thermal treatment under an ammonia atmosphere. 0.48% of N has been uniformly incorporated into the graphene sheets, which results in an inherent improvement in conductivity. Simultaneously, the as-fabricated N-RGO paper possesses excellent flexibility without any effect on its electronic properties. Furthermore, the good performance of N-RGO as a supercapacitor electrode was also demonstrated with a high specific capacitance of 280 F g(-1) at 5 mV s(-1). The N-RGO electrode also exhibited a remarkable long-term cycling stability with 99.4% capacitance retention after 40 000 cycles. This work constitutes the first attempt of applying N-doping to improve the electronic properties and electrochemical performance for graphene paper.
机译：在这项工作中，我们通过真空过滤和在氨气氛下进行热处理的组合方法，制造了轻质（1.25 g cm（-3））N掺杂的还原石墨烯（N-RGO）纸。 0.48％的N已均匀地掺入石墨烯片中，这导致了固有的导电性改善。同时，制成的N-RGO纸具有优异的柔韧性，而对其电子性能没有任何影响。此外，还证明了N-RGO作为超级电容器电极的良好性能，在5 mV s（-1）时具有280 F g（-1）的高比电容。 N-RGO电极还表现出卓越的长期循环稳定性，在40 000次循环后的电容保持率为99.4％。这项工作是首次应用N掺杂来改善石墨烯纸的电子性能和电化学性能的尝试。

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