Facile Synthesis of Highly Electrocapacitive Nitrogen-Doped Graphitic Porous Carbons

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The present study introduces a facile method to produce nitrogen-doped graphitic porous carbons (NGPCs) with balanced pore size distribution (0.5-5 nm) and high surface area (above 3000 m(2) g(-1))by utilizing polyacrylonitrile (PAN) as a precursor. The NGPCs are obtained by the stabilization of PAN at 290 degrees C and subsequent carbonization with KOH activation at 700-800 degrees C. It is striking that the activation also changes the morphology of PAN from a grape-like structure to a smooth porous structure accompanying partial layer formations of nitrogen-doped graphene. Generation of evenly distributed micro- and mesopores with high specific surface areas, heteroatom doping on the surface of NGPCs, and low resistance of NGPCs contribute to the enhanced capacitance as supercapacitor electrodes.
Publisher
AMER CHEMICAL SOC
Issue Date
2014-05
Language
English
Article Type
Article
Keywords

CHEMICAL-VAPOR-DEPOSITION; DOUBLE-LAYER CAPACITANCE; ELECTROCHEMICAL CAPACITORS; SUPERIOR PERFORMANCE; MESOPOROUS CARBON; ENERGY-STORAGE; KOH ACTIVATION; SURFACE-AREA; FUEL-CELLS; PORE-SIZE

Citation

JOURNAL OF PHYSICAL CHEMISTRY C, v.118, no.18, pp.9357 - 9367

ISSN
1932-7447
DOI
10.1021/jp501742x
URI
http://hdl.handle.net/10203/189193
Appears in Collection
CBE-Journal Papers(저널논문)
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