Facile Co-Electrodeposition Method for High-Performance Supercapacitor Based on Reduced Graphene Oxide/Polypyrrole Composite Film

• DOI: 10.1021/acsami.7b03786
• Publication Date: 2017-05-24T12:44:58Z
• Authors: Junchen Chen; Yaming Wang; Jianyun Cao; Yan Liu; Yu Zhou; Jia-Hu Ouyang; Dechang Jia
• Keywords: Polypyrrole; Horizontal scan rate

A facile co-electrodeposition method has been developed to fabricate reduced graphene oxide/polypyrrole (rGO/PPy) composite films, with sodium dodecyl benzene sulfonate as both a surfactant and supporting electrolyte in the precursor solution. The introduction of rGO into PPy films forms porous structure enhances conductivity across film, leading superior electrochemical performance. By controlling deposition time concentration, highest area capacitance can reach 411 mF/cm2 (0.2 mA/cm2) for rGO/PPy whereas optimized specific is high 361 F/g mA/cm2). All exhibit excellent rate capability (at least 175 at current density 12 compared pure film (only exhibits cycling stability that maintains 104% its initial after 2000 cycles 80% 5000 cycles. two-electrode solid-state supercapacitor (SC) based on electrodes demonstrates good performance, stability, well 222 mF/cm2. planar SC an 9.4 mF/cm2, demonstrating great potential fabrication microsupercapacitors.