期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 727, 期 -, 页码 721-727出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.07.335
关键词
Reduced graphene oxide (rGO)/single-wall; carbon nanotubes (SWNTs) composite; Polycaprolactone (PCL); Spray coating technique; Flexible supercapacitor
The reduced graphene oxide (rGO)/single-wall carbon nanotubes (SWNTs) composites are coated onto the polycaprolactone (PCL) substrate via spray coating technique to prepare a flexible supercapacitor. The electrochemical properties of the flexible PCL supercapacitor as a function of bending cycles and angles are evaluated using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge/discharge tests. The EIS and charge/discharge curves of the flexible PCL supercapacitor exhibit capacitive behavior even after prolonged bending cycles up to 500. The highest capacitance value of the unbent PCL supercapacitor is 52.5 F g(-1) which retained 65% after 500 bending with 6000th galvanostatic charge/discharge cycles. (C) 2017 Published by Elsevier B.V.
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