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Double layer capacitance of high surface area carbon nanospheres derived from resorcinol–formaldehyde polymers

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Abstract.
Micro-mesoporous bimodal carbon nanospheres with high surface areas were synthesized
by a combined use of surfactant templating technique and BaO2 chemical activation one.
Starting spherical nanopolymer/surfactant composites were prepared by the NaOH-catalyzed
reaction of resorcinol (R) and formaldehyde (F) in the presence of cetyltrimethylammonium
bromide (CTAB) as a core template and 1,3,5-trimethylbenzene (TMB) and tertbutanol
(t-BuOH) as cosurfactants. After pretreatment with hydrochloric acid, the composite
materials were calcined at 1000 oC in N2 coexistent with varying weight ratios of BaO2 to
RF polymer ranging from 0 to 11. It produced micro-mesoporous bimodal carbon nanospheres
of 124–143 nm diameter, with specific surface areas as high as 1884 m2 g-1 or up
to 3301m2 g-1, in contrast to microporous ones with smaller surface areas obtained at
low BaO2-loadings. The electrochemical double layer capacitance of the resulting nanocarbons
in 0.5 M H2SO4 showed a marked increase with specific surface areas, up to as high as
219 F g-1 for the highest surface area carbon material.

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Informasi Detail

Judul Seri

CARBON

No. Panggil

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Penerbit

New York : Elsevier Ltd.., 2011

Deskripsi Fisik

CARBON 49 (2011) 4848 –4857

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

49 (2011)

Subjek

KAPASITOR ELEKTROKIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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