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FeOOH nanorod arrays aligned on eggplant derived super long carbon tube network as negative electrodes for supercapacitors

Abstract

A beautiful and unique super long carbon tube network structure was synthesized by the freeze drying technique, and then carbonized of natural plant eggplant in nitrogen atmosphere. Subsequently, nano-rod like FeOOH arrays were evenly grown on the surface of the previous carbon materials via an easy and efficient hydrothermal process without any toxic chemicals. The composites grown for 5 h exhibits excellent performance, including specific capacitance of 396 F g-1 within a potential window from -1.08 to 0 V at a current density of 0.5 A g-1 (2 times of the pure eggplant-derived carbon), and a good cycle stability (94.4 % over 1500 cycles at a current density of 10 A g-1). It is speculated that the synergistic effect of super long hollow carbon tube network and nanorod-like FeOOH arrays contributes the fast electron transport and pseudo-capacitance behavior respectively, thus enhancing the electrochemical performance. The above results indicate the prepared nanocomposites prove to be a potential negative electrode for supercapacitors.

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Publication details

The article was received on 29 Nov 2017, accepted on 13 Feb 2018 and first published on 14 Feb 2018


Article type: Paper
DOI: 10.1039/C7NJ04662F
Citation: New J. Chem., 2018, Accepted Manuscript
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    FeOOH nanorod arrays aligned on eggplant derived super long carbon tube network as negative electrodes for supercapacitors

    J. Li, D. Chen, Q. Wu, X. Wang, Y. Zhang and Q. Zhang, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ04662F

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