Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole Composites
The composites based on carbon nanotubes (CNTs) and conducting polymers (CPs) are promising materials for supercapacitor devices due to their unique nanostructure that combines the large pseudocapacitance of the CPs with the fast charging/discharging double-layer capacitance and excellent mechanical...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/367473 |
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| author | Matei Raicopol Alina Pruna Luisa Pilan |
| author_facet | Matei Raicopol Alina Pruna Luisa Pilan |
| author_sort | Matei Raicopol |
| collection | DOAJ |
| description | The composites based on carbon nanotubes (CNTs) and conducting polymers (CPs) are promising materials for supercapacitor devices due to their unique nanostructure that combines the large pseudocapacitance of the CPs with the fast charging/discharging double-layer capacitance and excellent mechanical properties of the CNTs. Here, we report a new electrochemical method to obtain polypyrrole (PPY)/single-walled carbon nanotube (SWCNT) composites. In the first step, the SWCNTs are covalently functionalized with monomeric units of pyrrole by esterification of acyl chloride functionalized SWCNTs and N-(6-hydroxyhexyl)pyrrole. In the second step, the PPY/SWCNTs composites are obtained by copolymerizing the pyrrole monomer with the pyrrole units grafted on SWCNTs surface using controlled potential electrolysis. The composites were further characterized by cyclic voltammetry and electrochemical impedance spectroscopy. The results showed good electrochemical charge storage properties for the synthesized composites based on PPY and SWCNTs covalently functionalized with pyrrole units making them promising electrode materials for high power supercapacitors. |
| format | Article |
| id | doaj-art-b71a1afe6e7142bb9495ca016e0e04c3 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-b71a1afe6e7142bb9495ca016e0e04c32025-02-03T05:52:15ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/367473367473Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole CompositesMatei Raicopol0Alina Pruna1Luisa Pilan2Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 132 Calea Griviţei, 010737 Bucharest, RomaniaFaculty of Physics, University of Bucharest, 405 Atomistilor, 769231 Magurele, RomaniaFaculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 132 Calea Griviţei, 010737 Bucharest, RomaniaThe composites based on carbon nanotubes (CNTs) and conducting polymers (CPs) are promising materials for supercapacitor devices due to their unique nanostructure that combines the large pseudocapacitance of the CPs with the fast charging/discharging double-layer capacitance and excellent mechanical properties of the CNTs. Here, we report a new electrochemical method to obtain polypyrrole (PPY)/single-walled carbon nanotube (SWCNT) composites. In the first step, the SWCNTs are covalently functionalized with monomeric units of pyrrole by esterification of acyl chloride functionalized SWCNTs and N-(6-hydroxyhexyl)pyrrole. In the second step, the PPY/SWCNTs composites are obtained by copolymerizing the pyrrole monomer with the pyrrole units grafted on SWCNTs surface using controlled potential electrolysis. The composites were further characterized by cyclic voltammetry and electrochemical impedance spectroscopy. The results showed good electrochemical charge storage properties for the synthesized composites based on PPY and SWCNTs covalently functionalized with pyrrole units making them promising electrode materials for high power supercapacitors.http://dx.doi.org/10.1155/2013/367473 |
| spellingShingle | Matei Raicopol Alina Pruna Luisa Pilan Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole Composites Journal of Chemistry |
| title | Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole Composites |
| title_full | Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole Composites |
| title_fullStr | Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole Composites |
| title_full_unstemmed | Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole Composites |
| title_short | Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole Composites |
| title_sort | supercapacitance of single walled carbon nanotubes polypyrrole composites |
| url | http://dx.doi.org/10.1155/2013/367473 |
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