Abstract
A unique nature derived three-dimensional porous biocarbon, graphene (G), and polypyrrole composite as electrode materials for supercapacitor was successfully fabricated, which utilizes the advantage of the natural porous carbon structure, G and polypyrrole to promote the electrochemical performance of this composite electrode. Firstly, natural loofah and G oxide composite was prepared by direct dip-coating process. Secondly, high-temperature carbonization strategy was used to prepare loofah-based carbons–G (LBCs-G) composite. Thirdly, polypyrrole was directly coated on LBCs–G composite by applying electrochemical deposition method. The unique three-dimensional porous structure incorporated with G and polypyrrole boost the capacitance ascribe to both the electric double-layer capacitance and pseudocapacitance. The results also reveal that there are synergistic effects among the porous structure, G and polypyrrole.
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Acknowledgements
This project was financially supported by the Education Department project for Sichuan province (17ZA0368), China Education Department Chunhui project (Z2016124), Science and Technology Department of Sichuan Province Miaozi project (2017112), key project of Xihua University (Z1512329), and Experimental platform construction project (szjj2016-027).
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Yang, Bj., Jiang, Ll., Li, Yj. et al. Three-dimensional porous biocarbon wrapped by graphene and polypyrrole composite as electrode materials for supercapacitor. J Mater Sci: Mater Electron 29, 2568–2572 (2018). https://doi.org/10.1007/s10854-017-8179-5
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DOI: https://doi.org/10.1007/s10854-017-8179-5