Dye-functionalized graphene/polyaniline nanocomposite as an electrode for efficient electrochemical supercapacitor. (12th August 2015)

• Record Type: Journal Article
• Authors: Lü, Qiu-Feng; Chen, Guo; Lin, Ting-Ting; Yu, Yan
• Is Part Of: Composites science and technology. Volume 115(2015)
• Page Start: 80
• Page End: 86
• Publication Date: 2015-08-12
• Subjects: A. Functional composites -- A. Nano composites -- B. Synergism -- D. Photoelectron spectroscopy (XPS) -- D. Scanning electron microscopy (SEM); Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2015.05.002
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: Three dye-functionalized graphene oxide/polyaniline (GAP) composites were first prepared by optimizing acid blue 74 (AB74) feed content, and then dye-functionalized graphene/polyaniline (rGAP) nanocomposites were obtained from the GAP composites through reducing and re-protonating treatments. The AB74 dye molecules with negatively charged sulfonic groups can effectively prevent aggregation of graphene sheets during the reduction process of graphene oxide, and can be used as a bridge to attach polyaniline nanorods via π–π conjunction and electrostatic attraction. Furthermore, when rGAP5 (the AB74 feed content of 5 wt.%) was used as a supercapacitor electrode material, it achieved a high specific capacitance of 579 F g −1 at a current density of 0.5 A g −1, good cycling stability and rate capacity.