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Preparation and characterization of carbon aerogel microspheres by an inverse emulsion polymerization

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Abstract.
Carbon aerogel (CA) microspheres have been successfully synthesized by an inverse emulsion polymerization
and characterized by scanning electron microscopy (SEM), N2 sorption isotherm and X-ray diffraction (XRD).
The results show that the size and pore characteristics of carbon microsphere obviously depend on stirring
speed and concentration of surfactant in the emulsion polymerization process. The resultant CA microspheres
are amorphous carbon structure with the size ranging from about 2 to 50 μm by changing the stirring speed.
CA microspheres with SBET of 414–603 m2 g−1 and Vmeso of 0.028–0.432 cm3 g−1 are synthesized using
different SPAN80 concentrations. The results of cyclic voltammetry indicate that the CA microspheres
prepared at a stirring speed of 480 rpm and at Vs/Vh=0.01 have ideal supercapacitive behavior in 6 M KOH
electrolyte, the maximum specific capacitance of the electrode reaches 180 F g−1.

Keywords: Carbon aerogel microspheres; Inverse emulsion polymerization; Specific surface area; Specific capacitance

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Ketersediaan

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Informasi Detail

Judul Seri

Journal of Non-Crystalline Solids

No. Panggil

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Penerbit

New York : Elsevier B.V.., 2011

Deskripsi Fisik

Journal of Non-Crystalline Solids 357 (2011) 793–797

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

357 (2011)

Subjek

KAPASITOR ELEKTROKIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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