Fibrous and flexible supercapacitors with a hierarchical nanostructure comprised of carbon spheres and graphene

Xiong Zhang, Yaxin Zheng, Ke-Qin Zhang
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引用次数: 1

Abstract

A simple electrochemical deposition method is introduced for the preparation of a hierarchical nanostructure comprised of graphene and carbon spheres. The carbon spheres are used as nano-spacers to separate graphene nanosheets, improving properties. This method allowed for the one-step preparation of a fibrous, flexible supercapacitor electrode. The fibrous, flexible supercapacitors fabricated based on this hierarchically nanostructured material achieved excellent electrochemical performance. With an areal capacitance of 60.02mF/cm2 (two-electrode system) in aqueous electrolyte, this structure displayed an areal capacitance three times than that of pure-graphene supercapacitors. This method can be employed to fabricate various graphene-based fibrous and flexible composite electrodes for wearable electronics and energy storage applications.
由碳球和石墨烯组成的层次化纳米结构的纤维和柔性超级电容器
介绍了一种简单的电化学沉积方法,用于制备由石墨烯和碳球组成的分层纳米结构。碳球被用作纳米间隔物来分离石墨烯纳米片,从而改善其性能。该方法允许一步制备纤维性柔性超级电容器电极。基于这种分层纳米结构材料制成的纤维状柔性超级电容器具有优异的电化学性能。在水溶液中,该结构的面电容为60.02mF/cm2(双电极体系),比纯石墨烯超级电容器的面电容大3倍。该方法可用于制造各种石墨烯基纤维和柔性复合电极,用于可穿戴电子和储能应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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