Flexible all solid-state supercapacitors based on chemical vapor deposition derived graphene fibers
Flexible all solid-state supercapacitors based on chemical vapor deposition derived graphene fibers
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DOI：
10.1039/c3cp52908h
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发表时间：
2013-01-01
影响因子：
3.3
通讯作者：
Zhu, Hongwei
中科院分区：
文献类型：
--
作者：
Li, Xinming;Zhao, Tianshuo;Zhu, Hongwei
本研究展示了基于石墨烯纤维的柔性全固态超级电容器。采用表面沉积的氧化纳米粒子作为伪电容电极实现高电容。这种超级电容器电极的面电容为42 mF cm(-2)，这与迄今为止报道的基于光纤的超级电容器的电容相当。在弯曲和循环过程中，纤维基超级电容器可以在不牺牲电化学性能的情况下保持稳定性，这为开发柔性、轻量化和高效的石墨烯基器件提供了一种新颖而简单的方法。
Flexible all-solid-state supercapacitors based on graphene fibers are demonstrated in this study. Surface-deposited oxide nanoparticles are used as pseudo-capacitor electrodes to achieve high capacitance. This supercapacitor electrode has an areal capacitance of 42 mF cm(-2), which is comparable to the capacitance for fiber-based supercapacitors reported to date. During the bending and cycling of the fiber-based supercapacitor, the stability could be maintained without sacrificing the electrochemical performance, which provides a novel and simple way to develop flexible, lightweight and efficient graphene-based devices.