Polypyrrole/iron oxide/reduced graphene oxide ternary composite as a binderless electrode material with high cyclic stability for supercapacitors. (15th January 2017)

• Record Type: Journal Article
• Authors: Moyseowicz, Adam; Śliwak, Agata; Miniach, Ewa; Gryglewicz, Grażyna
• Is Part Of: Composites. Volume 109(2017)
• Page Start: 23
• Page End: 29
• Publication Date: 2017-01-15
• Subjects: Nano-structures -- Polymer-matrix composites (PMCs) -- 3-dimensional reinforcement -- Electrical properties -- Graphene-based composite; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2016.10.036
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Herein, we present a facile two-step synthesis of polypyrrole/Fe2 O3 /reduced graphene oxide (PFG) ternary composite. It includes the preparation of the binary Fe2 O3 /reduced graphene oxide (FG) composite under hydrothermal conditions, followed by oxidative polymerization of pyrrole on the FG composite surface. X-ray diffraction measurements revealed the presence of the α-Fe2 O3 phase in both composites. The electrochemical measurements performed using the composite electrodes in a 1 M Na2 SO4 solution revealed that the binder-free PFG electrode exhibits a high specific capacitance of 140 F g −1 with an excellent capacitance retention of 93% after 5000 cycles at 1 A g −1 which can be attributed to the synergistic effect between polypyrrole and FG composite.