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Variable texture few-layer ordered macroporous carbon for high-performance electrochemical capacitors

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Abstract

Few-layer carbon with an interconnected ordered macroporous structure has unique attributes which are appealing for many applications in energy storage, catalyst support, and thermal management. But to date the preparation of such structures is still challenging. Here we report an ordered macroporous few-layer carbon with variable texture prepared by chemical vapour deposition, using porous opal infiltrated with alumina sol as the template. By adjusting the composition of the interfacial phase, the ordered macroporous structure varies from a square network to a honeycomb structure; this process may be an important new method to control micro-morphology. Aided by its high specific surface area (1240 m2 g−1) and meso/microporous structure, this material takes full advantage of the electrochemical attributes of few-layer carbon, featuring a specific capacitance of 415 F g−1, of which 94.5% is retained after 10 000 charging/discharging cycles. Such capabilities may accelerate the adoption of porous carbon for energy storage applications.

Graphical abstract: Variable texture few-layer ordered macroporous carbon for high-performance electrochemical capacitors

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Publication details

The article was received on 01 Nov 2017, accepted on 17 Nov 2017 and first published on 17 Nov 2017


Article type: Communication
DOI: 10.1039/C7TA09633J
Citation: J. Mater. Chem. A, 2017, Advance Article
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    Variable texture few-layer ordered macroporous carbon for high-performance electrochemical capacitors

    F. Xu, P. Sun, M. Qian, T. Lin and F. Huang, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA09633J

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