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

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 connec...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2014-01, Vol.2 (15), p.5212-5217
Main Authors: Wang, Youfu, Xiong, Rulin, Dong, Luhua, Hu, Aiguo
Format: Article
Language:English
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Summary: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 m super(2) g super(-1)), large pore volume ( similar to 3 cm super(3) g super(-1)) and partially graphitized frameworks exhibited good performances as supercapacitor electrode materials. The specific capacitance of the porous 3D CNMs reached 202 F g super(-1) at a current density of 0.5 A g super(-1) in an aqueous electrolyte.
ISSN:2050-7488
2050-7496
DOI:10.1039/c3ta15311h