Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6606140 | Electrochimica Acta | 2016 | 28 Pages |
Abstract
Here we developed a free-standing reduced graphene oxide (rGO)-polypyrrole (PPy) hybrid paper via electropolymerization on a paper-like graphene gel. This flexible hybrid paper displayed a uniform layered structure with PPy coated onto the graphene layers. A high areal mass of 2.7 mg cmâ2 could be obtained. It delivered a greatly enhanced areal capacitance of 440 mF cmâ2 at 0.5 A gâ1, in contrast to that 151â¼198.5 mF cmâ2 previously reported for graphene paper or polypyrrole-graphene paper. It can retain â¼81% of the initial capacitance at a high current density of 6 A gâ1. The combined high flexibility with outstanding electrochemical performance, makes such novel hybrid paper a promising electrode for flexible supercapacitors.
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Authors
Kewei Shu, Caiyun Wang, Chen Zhao, Yu Ge, Gordon G. Wallace,