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Issue 6, 2018
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FeOOH nanorod arrays aligned on eggplant derived super long carbon tube networks as negative electrodes for supercapacitors

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Abstract

A beautiful and unique super long carbon tube network structure was synthesized via a freeze-drying technique and then carbonization of natural eggplant in a nitrogen atmosphere. Subsequently, nanorod-like FeOOH arrays were evenly grown on the surface of the carbon material via an easy and efficient hydrothermal process without any toxic chemicals. The composites grown for 5 h exhibited excellent performance, including a specific capacitance of 396 F g−1 within a potential window of −1.08 to 0 V at a current density of 0.5 A g−1 (2 times that of the pure eggplant derived carbon) and a good cycling stability (83% over 500 cycles at a current density of 10 A g−1). It is speculated that the synergistic effect of the super long hollow carbon tube network and the nanorod-like FeOOH arrays contributes to the fast electron transport and the battery-type capacitance behavior, respectively, thus enhancing the electrochemical performance. The above results indicate that the prepared nanocomposites are a potential negative electrode for supercapacitors.

Graphical abstract: FeOOH nanorod arrays aligned on eggplant derived super long carbon tube networks as negative electrodes 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., 2018,42, 4513-4519
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    FeOOH nanorod arrays aligned on eggplant derived super long carbon tube networks as negative electrodes for supercapacitors

    J. Li, D. Chen, Q. Wu, X. Wang, Y. Zhang and Q. Zhang, New J. Chem., 2018, 42, 4513
    DOI: 10.1039/C7NJ04662F

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