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Issue 14, 2019
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From fluorene molecules to ultrathin carbon nanonets with an enhanced charge transfer capability for supercapacitors

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Abstract

It is a big challenge to synthesize ultrathin carbon nanonets with an enhanced charge transfer capability for high-performance energy storage devices. Herein, ultrathin carbon nanonets (UCNs) were successfully synthesized for the first time from fluorene, a typical aromatic molecule, by a template strategy for supercapacitors. The formation mechanism of UCNs was determined using Density Functional Theory and Materials Studio, in which the fluorene-derived radicals were assembled into UCNs in the template-confinement space with the assistance of KOH. The as-made UCNs feature interconnected high-conductivity net-like architectures with enhanced charge transfer capability, evidenced by their high capacitance, excellent rate performance and cycling stability for symmetrical supercapacitors in a KOH electrolyte. This finding may provide a significant step forward in understanding the formation mechanism of graphene-like materials from more complicated aromatic hydrocarbon molecules, and our work may draw wide attention in the fields of aromatic chemistry and carbon-based energy storage materials.

Graphical abstract: From fluorene molecules to ultrathin carbon nanonets with an enhanced charge transfer capability for supercapacitors

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Article information


Submitted
03 Jan 2019
Accepted
05 Mar 2019
First published
06 Mar 2019

Nanoscale, 2019,11, 6610-6619
Article type
Paper

From fluorene molecules to ultrathin carbon nanonets with an enhanced charge transfer capability for supercapacitors

X. He, X. Xie, J. Wang, X. Ma, Y. Xie, J. Gu, N. Xiao and J. Qiu, Nanoscale, 2019, 11, 6610
DOI: 10.1039/C9NR00068B

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