Functionalized Graphene Hydrogel-Based High-Performance Supercapacitors

Functionalized Graphene Hydrogel-Based High-Performance Supercapacitors

Functionalized graphene hydrogels are prepared by a one‐step low‐temperature reduction process and exhibit ultrahigh specific capacitances and excellent cycling stability in the aqueous electrolyte. Flexible solid‐state supercapacitors based on functionalized graphene hydrogels are demonstrated with...

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Veröffentlicht in:Advanced materials (Weinheim) 2013-10, Vol.25 (40), p.5779-5784
Hauptverfasser: Xu, Yuxi, Lin, Zhaoyang, Huang, Xiaoqing, Wang, Yang, Huang, Yu, Duan, Xiangfeng
Format: Artikel
Sprache:eng
Schlagworte:
Aqueous electrolytes
Electric Capacitance
Electrodes
Electrolytes - chemistry
energy storage
flexible electronics
graphene hydrogels
Graphite - chemistry
Hydrogel, Polyethylene Glycol Dimethacrylate - chemistry
Oxides - chemistry
supercapacitors
three-dimensional
Water - chemistry
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Beschreibung
Zusammenfassung:Functionalized graphene hydrogels are prepared by a one‐step low‐temperature reduction process and exhibit ultrahigh specific capacitances and excellent cycling stability in the aqueous electrolyte. Flexible solid‐state supercapacitors based on functionalized graphene hydrogels are demonstrated with superior capacitive performances and extraordinary mechanical flexibility.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201301928