期刊
ELECTROCHIMICA ACTA
卷 212, 期 -, 页码 561-571出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.07.052
关键词
Graphene; Areal capacitance; Polypyrrole; Supercapacitor; Flexible hybrid paper electrode
资金
- Australian Research Council Centre of Excellence Scheme [CE 140100012]
- ARC under Australian Laureate Fellowship scheme [FL110100196]
- CSC scholarship from Ministry of Education of P. R. China
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 cm(-2) could be obtained. It delivered a greatly enhanced areal capacitance of 440 mF cm(-2) at 0.5 A g(-1), in contrast to that 151-198.5 mF cm(-2) previously reported for graphene paper or polypyrrole-graphene paper. It can retain similar to 81% of the initial capacitance at a high current density of 6 A g(-1). The combined high flexibility with outstanding electrochemical performance, makes such novel hybrid paper a promising electrode for flexible supercapacitors. (C) 2016 Elsevier Ltd. All rights reserved.
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