Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes
Abstract Flexible supercapacitors(SCs) made by reduced graphene oxide (rGO)-based aerogel usually suffer from the low energy density, short cycle life and bad flexibility. In this study, a new, synthetic strategy was developed for enhancing the electrochemical performances of rGO aerogel-based super...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-06-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s11671-017-2159-9 |
| _version_ | 1797757533867212800 |
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| author | Yu Yang Yunlong Xi Junzhi Li Guodong Wei N. I. Klyui Wei Han |
| author_facet | Yu Yang Yunlong Xi Junzhi Li Guodong Wei N. I. Klyui Wei Han |
| author_sort | Yu Yang |
| collection | DOAJ |
| description | Abstract Flexible supercapacitors(SCs) made by reduced graphene oxide (rGO)-based aerogel usually suffer from the low energy density, short cycle life and bad flexibility. In this study, a new, synthetic strategy was developed for enhancing the electrochemical performances of rGO aerogel-based supercapacitor via electrodeposition polyaniline arrays on the prepared ultralight rGO aerogel. The novel hybrid composites with coated polyaniline (PANI) arrays growing on the rGO surface can take full advantage of the rich open-pore and excellent conductivity of the crosslinking framework structure of 3D rGO aerogel and high capacitance contribution from the PANI. The obtained hybrid composites exhibit excellent electrochemical performance with a specific capacitance of 432 F g-1 at the current density of 1 A g-1, robust cycling stability to maintain 85% after 10,000 charge/discharge cycles and high energy density of 25 W h kg-1. Furthermore, the flexible all-solid-state supercapacitor have superior flexibility and outstanding stability under different bending states from the straight state to the 90° status. The high-performance flexible all-solid-state SCs together with the lighting tests demonstrate it possible for applications in portable electronics. |
| first_indexed | 2024-03-12T18:17:10Z |
| format | Article |
| id | doaj.art-705c557359644827ad05bb4688f824a3 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T18:17:10Z |
| publishDate | 2017-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-705c557359644827ad05bb4688f824a32023-08-02T09:05:31ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2017-06-011211910.1186/s11671-017-2159-9Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel ElectrodesYu Yang0Yunlong Xi1Junzhi Li2Guodong Wei3N. I. Klyui4Wei Han5Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), Jilin UniversityKey Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), Jilin UniversityKey Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), Jilin UniversityKey Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), Jilin UniversityKey Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), Jilin UniversityKey Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), Jilin UniversityAbstract Flexible supercapacitors(SCs) made by reduced graphene oxide (rGO)-based aerogel usually suffer from the low energy density, short cycle life and bad flexibility. In this study, a new, synthetic strategy was developed for enhancing the electrochemical performances of rGO aerogel-based supercapacitor via electrodeposition polyaniline arrays on the prepared ultralight rGO aerogel. The novel hybrid composites with coated polyaniline (PANI) arrays growing on the rGO surface can take full advantage of the rich open-pore and excellent conductivity of the crosslinking framework structure of 3D rGO aerogel and high capacitance contribution from the PANI. The obtained hybrid composites exhibit excellent electrochemical performance with a specific capacitance of 432 F g-1 at the current density of 1 A g-1, robust cycling stability to maintain 85% after 10,000 charge/discharge cycles and high energy density of 25 W h kg-1. Furthermore, the flexible all-solid-state supercapacitor have superior flexibility and outstanding stability under different bending states from the straight state to the 90° status. The high-performance flexible all-solid-state SCs together with the lighting tests demonstrate it possible for applications in portable electronics.http://link.springer.com/article/10.1186/s11671-017-2159-9SupercapacitorElectrodepositionrGO aerogelPolyaniline arrayFlexible |
| spellingShingle | Yu Yang Yunlong Xi Junzhi Li Guodong Wei N. I. Klyui Wei Han Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes Nanoscale Research Letters Supercapacitor Electrodeposition rGO aerogel Polyaniline array Flexible |
| title | Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes |
| title_full | Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes |
| title_fullStr | Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes |
| title_full_unstemmed | Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes |
| title_short | Flexible Supercapacitors Based on Polyaniline Arrays Coated Graphene Aerogel Electrodes |
| title_sort | flexible supercapacitors based on polyaniline arrays coated graphene aerogel electrodes |
| topic | Supercapacitor Electrodeposition rGO aerogel Polyaniline array Flexible |
| url | http://link.springer.com/article/10.1186/s11671-017-2159-9 |
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