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Erschienen in: Journal of Materials Science: Materials in Electronics 9/2017

03.02.2017

CVD grown graphene/CNT composite as additive material to improve the performance of electric double layer capacitors (EDLCs)

verfasst von: Shu Ye, Ick-Jun Kim, Sun-hye Yang, Jae-won Lee, Won-Chun Oh

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 9/2017

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Abstract

In this work, large area graphene-carbon nanotube (G-CNT) composite as additive material for EDLC performance was grown on copper foil at low temperature (500 °C) and at atmospheric pressure by using chemical vapor deposition (CVD). The growth state was characterized by field emission scanning electron microscope (FESEM), high-resolution transmission electron microscopy (HRTEM), and Raman spectroscopy. EDLC electrodes based on high surface area activated carbon (YP50F) and G-CNT were then fabricated by a facile step. Coin-type EDLC cells with two symmetrical carbon electrodes were assembled using the prepared carbon materials. The electrochemical performance of G-CNT based eletrodes were examined in an electrolyte solution of tetraethylammonium tetrafluoroborate ((C2H5)4NBF4, TEABF4) in propylene carbonate (C4H6O3, PC) and measured by galvanostatic charge/discharge and cyclic voltammetry methods.

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Metadaten
Titel
CVD grown graphene/CNT composite as additive material to improve the performance of electric double layer capacitors (EDLCs)
verfasst von
Shu Ye
Ick-Jun Kim
Sun-hye Yang
Jae-won Lee
Won-Chun Oh
Publikationsdatum
03.02.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 9/2017
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-017-6349-0

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