Graphene quantum dots-carbon nanotube hybrid arrays for supercapacitors

Yue Hu*, Yang Zhao, Gewu Lu, Nan Chen, Zhipan Zhang, Hui Li, Huibo Shao, Liangti Qu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)

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 languageEnglish
Article number195401
JournalNanotechnology
Volume24
Issue number19
DOIs
Publication statusPublished - 17 May 2013

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