Poly(ethylene terephthalate)-based carbons as electrode material in supercapacitors
A systematic study by complementary techniques shows that PET-waste from plastic vessels is a competitive precursor of carbon electrodes for supercapacitors. PET derived-activated carbons follow the general trends observed for highly porous carbons and display specific capacitances at low current density as high as 197 F g−1 in 2 M H2SO4 aqueous electrolyte and 98 F g−1 in the aprotic medium 1 M (C2H5)4NBF4/acetonitrile. Additionally, high performance has also been achieved at high current densities, which confirms the potential of this type of materials for electrical energy storage. A new method based on the basic solvolysis of PET-waste and the subsequent carbonization seems to be an interesting alternative to obtain porous carbons with enhanced properties for supercapacitors.
| Main Authors: | , , , , , |
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| Format: | artículo biblioteca |
| Language: | English |
| Published: |
Elsevier
2010-06
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| Subjects: | Supercapacitor, Double-layer, Activated carbon, PET, |
| Online Access: | http://hdl.handle.net/10261/102365 |
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| Summary: | A systematic study by complementary techniques shows that PET-waste from plastic vessels is a competitive precursor of carbon electrodes for supercapacitors. PET derived-activated carbons follow the general trends observed for highly porous carbons and display specific capacitances at low current density as high as 197 F g−1 in 2 M H2SO4 aqueous electrolyte and 98 F g−1 in the aprotic medium 1 M (C2H5)4NBF4/acetonitrile. Additionally, high performance has also been achieved at high current densities, which confirms the potential of this type of materials for electrical energy storage.
A new method based on the basic solvolysis of PET-waste and the subsequent carbonization seems to be an interesting alternative to obtain porous carbons with enhanced properties for supercapacitors. |
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