Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1523974 | Materials Chemistry and Physics | 2012 | 5 Pages |
Graphene nanosheets-poly(o-aminophenol) (POAP/GNS) nanocomposite was fabricated on a platinum surface by potential cycling. Voltammograms of the POAP/GNS/Pt electrode showed an excellent capacitive behavior accompanied with a redox transition with a mid-peak potential of 295 mV. The POAP/GNS nanocomposite displayed a specific capacitance as high as 281.1 F g−1 at 0.1 A g−1 which is almost three times higher than that of pure graphene. The specific energy and power of the nanocomposite material were 25.0 Wh kg−1 and 34.8 W kg−1, respectively. The nanocomposite retained more than 99% of the initial capacitance after 1200 charge/discharge cycles.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Electrochemical synthesis of graphene nanosheets-poly(o-aminophenol) nanocomposite. ► Electrochemical characterization of the prepared nanocomposite. ► Application of the synthesized nanocomposite in supercapacitors.