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Ultra-high performance and flexible polypyrrole coated CNT paper electrodes for all-solid-state supercapacitors
Ultra-high performance, flexible, and good conductive polypyrrole (PPy) coated carbon nanotube paper (CNTP) electrodes are successfully prepared by a facile in situ interfacial polymerization method. The optimized PPy/CNTP electrode with a unique porous microstructure shows not only a prominent spec...
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Published in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2019, Vol.7 (17), p.1751-176 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Ultra-high performance, flexible, and good conductive polypyrrole (PPy) coated carbon nanotube paper (CNTP) electrodes are successfully prepared by a facile
in situ
interfacial polymerization method. The optimized PPy/CNTP electrode with a unique porous microstructure shows not only a prominent specific capacitance of 8604.5 mF cm
−2
at 1 mA cm
−2
, but also an excellent electrochemical cycling stability of 107% capacitance retention after 12 000 cycles. Moreover, the prepared electrodes exhibit superior flexibility. These remarkable performances are attributed to the robust 3D nanoporous microstructure, high electrical conductivity of
in situ
polymerized PPy, and strong π-π interactions between the PPy and CNTP. An all-solid-state symmetric supercapacitor assembled with the optimized PPy/CNTP electrode exhibits a maximum specific capacitance of 2185.1 mF cm
−2
at a current density of 1 mA cm
−2
, an outstanding energy density of 194.23 μW h cm
−2
at a power density of 0.40 mW cm
−2
, and a superior power density of 7.99 mW cm
−2
at an energy density of 70.13 μW h cm
−2
, further revealing great promise for supercapacitor application of the composite electrode.
Ultra-high performance and flexible polypyrrole coated CNT paper electrodes prepared by an
in situ
interfacial polymerization method for all-solid-state supercapacitors. |
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ISSN: | 2050-7488 2050-7496 |
DOI: | 10.1039/c9ta01856e |