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Dependence of electric double layer capacitance of activated carbons on the types of pores and their surface areas

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Abstract
The dependence of electric double layer capacitance on the pore structure of commercially available activated carbons in both nonaqueous and aqueous electrolytes was studied. Capacitance in the nonaqueous electrolyte (propylene carbonate solution of 1 mol/L triethyl-methyl-ammonium tetrafluoroborate) was linearly related to that in the aqueous electrolyte (1 mol/L H2SO4 solution). The contributions of the microporous surface area, Cmicro., and the surface formed on account of other large pores, Cext., were separately evaluated, the former being small and depending strongly on current density and the latter being almost constant.
Key Words: Capacitance; Nonaqueous electrolyte; Aqueous electrolyte; Pore surface areas

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Informasi Detail

Judul Seri

NEW CARBON MATERIALS

No. Panggil

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Penerbit

: ., 2008

Deskripsi Fisik

NEW CARBON MATERIALS Volume 23, Issue 2, March 2008

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

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

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