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Effect of post-spinning on the electrical and electrochemical properties of wet spun graphene fibre

机译：后旋转对湿纺石墨烯纤维电化学性能的影响

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摘要

There is an urgent need for electroactive materials that exhibit high electrochemical performance and mechanically-compliant properties while also retaining high strength and durability. Single graphene sheets have a large electroactive surface area and excellent electrical properties. However, to transfer the excellent mechanical and physical properties of individual graphene to macrostructures for practical application remains a challenge. Herein we demonstrate the effect of carbon nanotubes and/or conducting polymer on electrical and electrochemical properties of graphene fibres. The hybrid graphene/carbon nanotube/poly(3,4-ethylenedioxythiophene) fiber possessed significantly higher electrical conductivity (over 400 S cm(-1)) compared to a graphene fiber. This value is approximate to 500% higher than the reduced graphene oxide fiber. The graphene fibers show impressive electrochemical responses with a specific capacitance in excess of 499 F cm(-3) at the scan rate of 5 mV S-1. This was significantly enhanced for hybrid graphene/CNT/PEDOT fiber by approximate to 221% compared to graphene fibre at the scan rate of 1000 mV s(-1).
机译：迫切需要表现出高电化学性能和机械稳定性的电活性材料，同时还保持高强度和耐久性。单个石墨烯片具有大的电活性表面积和优异的电性能。然而，为了将单个石墨烯的优异机械和物理性质转移到实际应用的宏观结构仍然是一个挑战。在此，我们证明了碳纳米管和/或导电聚合物对石墨烯纤维的电化学性质的影响。与石墨烯纤维相比，杂交石墨烯/碳纳米管/聚（3,4-亚乙二氧基噻吩）纤维具有显着更高的电导率（超过400℃（-1））。该值近似高于降氧烯氧化物纤维的500％。石墨烯纤维以5mV S-1的扫描速率显示出令人印象深入的电化学响应，其特定电容超过499fcm（-3）。对于杂交石墨烯/ CNT / PEDOT / PEDOT / PEDOT纤维，与扫描率为1000mVs（-1）的扫描速率相比，杂种石墨烯/ CNT / PEDOT纤维显着增强。

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  • 来源
    《RSC Advances》 |2016年第52期|共6页
  • 作者

    Foroughi Javad; Antiohos Dennis; Wallace Gordon G.;

  • 作者单位

    Univ Wollongong Intelligent Polymer Res Inst ARC Ctr Excellence Electromat Sci Wollongong NSW 2522 Australia;

    Univ Wollongong Intelligent Polymer Res Inst ARC Ctr Excellence Electromat Sci Wollongong NSW 2522 Australia;

    Univ Wollongong Intelligent Polymer Res Inst ARC Ctr Excellence Electromat Sci Wollongong NSW 2522 Australia;

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  • 正文语种 eng
  • 中图分类 化学;
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