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| Main Authors: | , , , , , , |
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| Format: | Preprint |
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2024
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| Online Access: | https://arxiv.org/abs/2407.14354 |
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| _version_ | 1866929427880869888 |
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| author | Elashnikov, Roman Khrystonko, Olena Jilková, Tereza Rimpelová, Silvie Kolská, Zdenka Švorčík, Václav Lyutakov, Oleksiy |
| author_facet | Elashnikov, Roman Khrystonko, Olena Jilková, Tereza Rimpelová, Silvie Kolská, Zdenka Švorčík, Václav Lyutakov, Oleksiy |
| contents | Here, we report poly(N-acryloylglycinamide-co-vinyltriazole) p(NAGA-co-VTZ) supramolecular polymer hydrogel doped with activated polypyrrole nanotubes (acPPyNTs) as a high-strength self-healable material for supercapacitors. First, the p(NAGA-co-VTZ) hydrogel films were synthesized by photopolymerization of N-acryloylglycinamide and 1-vinyl-1,2,4-triazole without any cross-linkers. Scanning electron microscopy and mechanical tests showed that initial monomer concentration strongly affects both hydrogel microstructure and resulted mechanical properties. The hydrogels demonstrated self-healing ability through hydrogen bonding at the temperatures above upper critical solubility temperature, excellent mechanical properties (0.9 MPa), large stretchability (1300 %) and cut resistance. Next, as active material for electrochemical double layer capacitors (EDLC) carbonized and ethanol/KOH activated polypyrrole nanotubes (acPPyNTs) were prepared. Symmetric self-healable supercapacitor employing p(NAGA-co-VTZ) hydrogel, acPPyNTs and aqueous 3M KCl solution was assembled. Cyclic voltammetry, galvanostatic charge-discharge measurements showed that the prepared device gave a specific capacitance of 282.62 F g-1 at 0.2 A g-1 and high areal capacitance of 316.86 mF cm-2 at scan rate of 10 mV s-1. The supercapacitor operates over wide voltage window (0-1.2 V) and provides excellent cyclic performance with capacitance retention of 97 % after 10 000 cycles and 94 % after self-healing. Overall, the prepared self-healable supercapacitor appears to have considerable potential as high-performance energy storage device. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_14354 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | High strength self-healable supercapacitor based on supramolecular polymer hydrogel with upper critical solubility temperature Elashnikov, Roman Khrystonko, Olena Jilková, Tereza Rimpelová, Silvie Kolská, Zdenka Švorčík, Václav Lyutakov, Oleksiy Applied Physics Materials Science Here, we report poly(N-acryloylglycinamide-co-vinyltriazole) p(NAGA-co-VTZ) supramolecular polymer hydrogel doped with activated polypyrrole nanotubes (acPPyNTs) as a high-strength self-healable material for supercapacitors. First, the p(NAGA-co-VTZ) hydrogel films were synthesized by photopolymerization of N-acryloylglycinamide and 1-vinyl-1,2,4-triazole without any cross-linkers. Scanning electron microscopy and mechanical tests showed that initial monomer concentration strongly affects both hydrogel microstructure and resulted mechanical properties. The hydrogels demonstrated self-healing ability through hydrogen bonding at the temperatures above upper critical solubility temperature, excellent mechanical properties (0.9 MPa), large stretchability (1300 %) and cut resistance. Next, as active material for electrochemical double layer capacitors (EDLC) carbonized and ethanol/KOH activated polypyrrole nanotubes (acPPyNTs) were prepared. Symmetric self-healable supercapacitor employing p(NAGA-co-VTZ) hydrogel, acPPyNTs and aqueous 3M KCl solution was assembled. Cyclic voltammetry, galvanostatic charge-discharge measurements showed that the prepared device gave a specific capacitance of 282.62 F g-1 at 0.2 A g-1 and high areal capacitance of 316.86 mF cm-2 at scan rate of 10 mV s-1. The supercapacitor operates over wide voltage window (0-1.2 V) and provides excellent cyclic performance with capacitance retention of 97 % after 10 000 cycles and 94 % after self-healing. Overall, the prepared self-healable supercapacitor appears to have considerable potential as high-performance energy storage device. |
| title | High strength self-healable supercapacitor based on supramolecular polymer hydrogel with upper critical solubility temperature |
| topic | Applied Physics Materials Science |
| url | https://arxiv.org/abs/2407.14354 |