Graphene/Polyaniline Aerogel with Superelasticity and High Capacitance as Highly Compression-Tolerant Supercapacitor Electrode
Abstract Superelastic graphene aerogel with ultra-high compressibility shows promising potential for compression-tolerant supercapacitor electrode. However, its specific capacitance is too low to meet the practical application. Herein, we deposited polyaniline (PANI) into the superelastic graphene a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-12-01
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| Series: | Nanoscale Research Letters |
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| Online Access: | http://link.springer.com/article/10.1186/s11671-017-2395-z |
| _version_ | 1797719578188447744 |
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| author | Peng Lv Xun Tang Ruilin Zheng Xiaobo Ma Kehan Yu Wei Wei |
| author_facet | Peng Lv Xun Tang Ruilin Zheng Xiaobo Ma Kehan Yu Wei Wei |
| author_sort | Peng Lv |
| collection | DOAJ |
| description | Abstract Superelastic graphene aerogel with ultra-high compressibility shows promising potential for compression-tolerant supercapacitor electrode. However, its specific capacitance is too low to meet the practical application. Herein, we deposited polyaniline (PANI) into the superelastic graphene aerogel to improve the capacitance while maintaining the superelasticity. Graphene/PANI aerogel with optimized PANI mass content of 63 wt% shows the improved specific capacitance of 713 F g−1 in the three-electrode system. And the graphene/PANI aerogel presents a high recoverable compressive strain of 90% due to the strong interaction between PANI and graphene. The all-solid-state supercapacitors were assembled to demonstrate the compression-tolerant ability of graphene/PANI electrodes. The gravimetric capacitance of graphene/PANI electrodes reaches 424 F g−1 and retains 96% even at 90% compressive strain. And a volumetric capacitance of 65.5 F cm−3 is achieved, which is much higher than that of other compressible composite electrodes. Furthermore, several compressible supercapacitors can be integrated and connected in series to enhance the overall output voltage, suggesting the potential to meet the practical application. |
| first_indexed | 2024-03-12T09:06:55Z |
| format | Article |
| id | doaj.art-8b3c5937e4dd4889aa36b4695fe899e9 |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T09:06:55Z |
| publishDate | 2017-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-8b3c5937e4dd4889aa36b4695fe899e92023-09-02T15:15:23ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2017-12-0112111110.1186/s11671-017-2395-zGraphene/Polyaniline Aerogel with Superelasticity and High Capacitance as Highly Compression-Tolerant Supercapacitor ElectrodePeng Lv0Xun Tang1Ruilin Zheng2Xiaobo Ma3Kehan Yu4Wei Wei5School of Optoelectronic Engineering, Nanjing University of Post and TelecommunicationsSchool of Optoelectronic Engineering, Nanjing University of Post and TelecommunicationsSchool of Optoelectronic Engineering, Nanjing University of Post and TelecommunicationsSchool of Optoelectronic Engineering, Nanjing University of Post and TelecommunicationsSchool of Optoelectronic Engineering, Nanjing University of Post and TelecommunicationsSchool of Optoelectronic Engineering, Nanjing University of Post and TelecommunicationsAbstract Superelastic graphene aerogel with ultra-high compressibility shows promising potential for compression-tolerant supercapacitor electrode. However, its specific capacitance is too low to meet the practical application. Herein, we deposited polyaniline (PANI) into the superelastic graphene aerogel to improve the capacitance while maintaining the superelasticity. Graphene/PANI aerogel with optimized PANI mass content of 63 wt% shows the improved specific capacitance of 713 F g−1 in the three-electrode system. And the graphene/PANI aerogel presents a high recoverable compressive strain of 90% due to the strong interaction between PANI and graphene. The all-solid-state supercapacitors were assembled to demonstrate the compression-tolerant ability of graphene/PANI electrodes. The gravimetric capacitance of graphene/PANI electrodes reaches 424 F g−1 and retains 96% even at 90% compressive strain. And a volumetric capacitance of 65.5 F cm−3 is achieved, which is much higher than that of other compressible composite electrodes. Furthermore, several compressible supercapacitors can be integrated and connected in series to enhance the overall output voltage, suggesting the potential to meet the practical application.http://link.springer.com/article/10.1186/s11671-017-2395-zSuperelasticityGraphene aerogelPolyanilineCompression-tolerantSupercapacitor |
| spellingShingle | Peng Lv Xun Tang Ruilin Zheng Xiaobo Ma Kehan Yu Wei Wei Graphene/Polyaniline Aerogel with Superelasticity and High Capacitance as Highly Compression-Tolerant Supercapacitor Electrode Nanoscale Research Letters Superelasticity Graphene aerogel Polyaniline Compression-tolerant Supercapacitor |
| title | Graphene/Polyaniline Aerogel with Superelasticity and High Capacitance as Highly Compression-Tolerant Supercapacitor Electrode |
| title_full | Graphene/Polyaniline Aerogel with Superelasticity and High Capacitance as Highly Compression-Tolerant Supercapacitor Electrode |
| title_fullStr | Graphene/Polyaniline Aerogel with Superelasticity and High Capacitance as Highly Compression-Tolerant Supercapacitor Electrode |
| title_full_unstemmed | Graphene/Polyaniline Aerogel with Superelasticity and High Capacitance as Highly Compression-Tolerant Supercapacitor Electrode |
| title_short | Graphene/Polyaniline Aerogel with Superelasticity and High Capacitance as Highly Compression-Tolerant Supercapacitor Electrode |
| title_sort | graphene polyaniline aerogel with superelasticity and high capacitance as highly compression tolerant supercapacitor electrode |
| topic | Superelasticity Graphene aerogel Polyaniline Compression-tolerant Supercapacitor |
| url | http://link.springer.com/article/10.1186/s11671-017-2395-z |
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