Abstract
An interesting wood-based all-solid-state supercapacitor is produced using reduced graphene oxide (RGO) coated on wood transverse section slice (WTSS) as electrode material by means of a low-cost, eco-friendly, and simple method for the first time. The RGO-coated WTSS electrode has a porous 3D honeycomb framework due to the hierarchical cellular structure of the WTSS substrate and can function as an electrolyte reservoir. This special construction endows this novel electrode with good areal capacitance (102 mF cm−2) and excellent cyclic stability (capacitance retention of 98.9% after 5000 cycles). In addition, the supercapacitors exhibit good mechanical flexibility and preserve almost constant capacitive behavior under different bending conditions. Our study introduces a new and eco-friendly material design for electrodes in future flexible energy storage devices that closely resemble natural materials.
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Lv, S., Fu, F., Wang, S. et al. Eco-friendly wood-based solid-state flexible supercapacitors from wood transverse section slice and reduced graphene oxide. Electron. Mater. Lett. 11, 633–642 (2015). https://doi.org/10.1007/s13391-015-5023-z
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DOI: https://doi.org/10.1007/s13391-015-5023-z