Issue 15, 2014

Synthesis of carbon nanomembranes through cross-linking of phenyl self-assembled monolayers for electrode materials in supercapacitors

Abstract

A bottom-up synthesis of three-dimensional (3D) carbon nanomembranes (CNMs) was developed through Friedel–Crafts cross-linking of phenyl self-assembled monolayers (SAMs) on silica nanospheres (SNSs) followed by high temperature treatment and template removal. The CNMs show a hierarchically 3D connected porous structure and the pore sizes are facilely tuned by varying the sizes of SNS templates. CNMs with high surface area (>1500 m2 g−1), large pore volume (∼3 cm3 g−1) and partially graphitized frameworks exhibited good performances as supercapacitor electrode materials. The specific capacitance of the porous 3D CNMs reached 202 F g−1 at a current density of 0.5 A g−1 in an aqueous electrolyte.

Graphical abstract: Synthesis of carbon nanomembranes through cross-linking of phenyl self-assembled monolayers for electrode materials in supercapacitors

Supplementary files

Article information

Article type
Paper
Submitted
20 Dec 2013
Accepted
20 Jan 2014
First published
21 Jan 2014

J. Mater. Chem. A, 2014,2, 5212-5217

Synthesis of carbon nanomembranes through cross-linking of phenyl self-assembled monolayers for electrode materials in supercapacitors

Y. Wang, R. Xiong, L. Dong and A. Hu, J. Mater. Chem. A, 2014, 2, 5212 DOI: 10.1039/C3TA15311H

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