Abstract
Graphene quantum dots (GQDs) have been successfully deposited onto aligned carbon nanotubes (CNTs) by a benign electrochemical method and the capacitive properties of the as-formed GQD/CNT hybrid arrays were evaluated in symmetrical supercapacitors. It was found that supercapacitors fabricated from GQD/CNT hybrid arrays exhibited a high capacitance of 44 mF cm-2, representing a more than 200% improvement over that of bare CNT electrodes.
Original language | English |
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Article number | 195401 |
Journal | Nanotechnology |
Volume | 24 |
Issue number | 19 |
DOIs | |
Publication status | Published - 17 May 2013 |