e-journal

Porous carbon with tailored pore size for electric double layer capacitors application

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Abstract.
A series of porous carbon samples as electric double layer capacitor electrode materials were prepared
by a pyrolysis process using phenol formaldehyde resin (PF) as precursors and KOH/ZnCl2 as activation
agents. Porous carbon samples were characterized by thermogravimetric analysis, X ray diffraction, nitrogen
adsorption/desorption isotherms and transmission electron microscopy. The results showed that the
KOH/ZnCl2/PF mass mixing ratio and activation temperature had a remarkable effect on the porosity, the
specific surface area and the pore size of the carbons. The prepared carbon material PC-6 exhibits a
high specific capacitance of 141.56 F/g and a average specific energy of 74.13 Wh/kg at a current density
of 120 mA/g in the electrolyte of 1 M Et3MeNBF4/PC, and the average specific energy still remained
49.48 Wh/kg even at a high current density of 2000 mA/g. The excellent electrochemical behavior of PC-6
can be attributed to the highly development pore structure.

Keywords:
Supercapacitor
Specific capacitance
Electrochemical performance
Porous carbon

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Ketersediaan

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Informasi Detail

Judul Seri

Applied Surface Science

No. Panggil

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Penerbit

New York : Elsevier B.V.., 2012

Deskripsi Fisik

Applied Surface Science 258 (2012) 6097– 6102

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

258 (2012)

Subjek

POROUS-CAPASITANCE

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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