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Issue 10, 2015
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Bio-inspired beehive-like hierarchical nanoporous carbon derived from bamboo-based industrial by-product as a high performance supercapacitor electrode material

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Abstract

Bio-inspired beehive-like hierarchical nanoporous carbon (BHNC) with a high specific surface area of 1472 m2 g−1 and a good electronic conductivity of 4.5 S cm−1 is synthesized by carbonizing the industrial waste of bamboo-based by-product. The BHNC sample exhibits remarkable electrochemical performances as a supercapacitor electrode material, such as a high specific capacitance of 301 F g−1 at 0.1 A g−1, still maintaining a value of 192 F g−1 at 100 A g−1, negligible capacitance loss after 20 000 cycles at 1 A g−1, and a high power density of 26 000 W kg−1 at an energy density of 6.1 W h kg−1 based on active electrode materials in an aqueous electrolyte system. Moreover, an enhanced power density of 42 000 W kg−1 at a high energy density of 43.3 W h kg−1 is obtained in an ionic liquid electrolyte system, which places the BHNC-based supercapacitors in the Ragone chart among the best energy–power synergetic outputting properties ever reported for carbon-based supercapacitors.

Graphical abstract: Bio-inspired beehive-like hierarchical nanoporous carbon derived from bamboo-based industrial by-product as a high performance supercapacitor electrode material

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Publication details

The article was received on 03 Dec 2014, accepted on 30 Jan 2015 and first published on 30 Jan 2015


Article type: Paper
DOI: 10.1039/C4TA06620K
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J. Mater. Chem. A, 2015,3, 5656-5664

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    Bio-inspired beehive-like hierarchical nanoporous carbon derived from bamboo-based industrial by-product as a high performance supercapacitor electrode material

    W. Tian, Q. Gao, Y. Tan, K. Yang, L. Zhu, C. Yang and H. Zhang, J. Mater. Chem. A, 2015, 3, 5656
    DOI: 10.1039/C4TA06620K

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