{"title":"用于电化学电容器的具有高比表面积和电容的柔性纳米纤维网电极","authors":"Soo Jung Lee, Jun Young Lee","doi":"10.1007/s13233-024-00308-z","DOIUrl":null,"url":null,"abstract":"<div><p>Flexible, lightweight electrode for electrochemical capacitor with high surface area and capacitance was successfully prepared based on the electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) nanofiber web. Electrode was fabricated by three steps. First, PVDF-HFP nanofiber web was formed by electrospinning. Platinum (Pt) thin layer as a current collector was then deposited on the electrospun PVDF-HFP nanofiber web by an electroless plating and followed by deposition of manganese dioxide (MnO<sub>2</sub>) using a hydrothermal method, finally producing MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web electrode. We confirmed formation of MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web electrode with desired structure and chemical composition. The galvanic charge–discharge specific capacitance of the flexible MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web electrode was 201.4 F/g at current density of 1 mA/cm<sup>2</sup>. Even after 1000 bending cycles, specific capacitance obtained from cyclic voltammetry of the nanofiber web electrode maintained up to 88.8% of the initial capacitance, implying excellent bending durability of the electrode. Since MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web electrode exhibited excellent electrochemical activity and mechanical flexibility, we expect potential applications in flexible, wearable, and stretchable electronic devices.</p><h3>Graphic abstract</h3><p>Scheme of fabrication process and surface and cross-section of MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web</p>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":688,"journal":{"name":"Macromolecular Research","volume":"32 10","pages":"1041 - 1048"},"PeriodicalIF":2.8000,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Flexible nanofiber web electrode with high surface area and capacitance for electrochemical capacitor\",\"authors\":\"Soo Jung Lee, Jun Young Lee\",\"doi\":\"10.1007/s13233-024-00308-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Flexible, lightweight electrode for electrochemical capacitor with high surface area and capacitance was successfully prepared based on the electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) nanofiber web. Electrode was fabricated by three steps. First, PVDF-HFP nanofiber web was formed by electrospinning. Platinum (Pt) thin layer as a current collector was then deposited on the electrospun PVDF-HFP nanofiber web by an electroless plating and followed by deposition of manganese dioxide (MnO<sub>2</sub>) using a hydrothermal method, finally producing MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web electrode. We confirmed formation of MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web electrode with desired structure and chemical composition. The galvanic charge–discharge specific capacitance of the flexible MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web electrode was 201.4 F/g at current density of 1 mA/cm<sup>2</sup>. Even after 1000 bending cycles, specific capacitance obtained from cyclic voltammetry of the nanofiber web electrode maintained up to 88.8% of the initial capacitance, implying excellent bending durability of the electrode. Since MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web electrode exhibited excellent electrochemical activity and mechanical flexibility, we expect potential applications in flexible, wearable, and stretchable electronic devices.</p><h3>Graphic abstract</h3><p>Scheme of fabrication process and surface and cross-section of MnO<sub>2</sub>/Pt/PVDF-HFP nanofiber web</p>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":688,\"journal\":{\"name\":\"Macromolecular Research\",\"volume\":\"32 10\",\"pages\":\"1041 - 1048\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Macromolecular Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13233-024-00308-z\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Macromolecular Research","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s13233-024-00308-z","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
Flexible nanofiber web electrode with high surface area and capacitance for electrochemical capacitor
Flexible, lightweight electrode for electrochemical capacitor with high surface area and capacitance was successfully prepared based on the electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) nanofiber web. Electrode was fabricated by three steps. First, PVDF-HFP nanofiber web was formed by electrospinning. Platinum (Pt) thin layer as a current collector was then deposited on the electrospun PVDF-HFP nanofiber web by an electroless plating and followed by deposition of manganese dioxide (MnO2) using a hydrothermal method, finally producing MnO2/Pt/PVDF-HFP nanofiber web electrode. We confirmed formation of MnO2/Pt/PVDF-HFP nanofiber web electrode with desired structure and chemical composition. The galvanic charge–discharge specific capacitance of the flexible MnO2/Pt/PVDF-HFP nanofiber web electrode was 201.4 F/g at current density of 1 mA/cm2. Even after 1000 bending cycles, specific capacitance obtained from cyclic voltammetry of the nanofiber web electrode maintained up to 88.8% of the initial capacitance, implying excellent bending durability of the electrode. Since MnO2/Pt/PVDF-HFP nanofiber web electrode exhibited excellent electrochemical activity and mechanical flexibility, we expect potential applications in flexible, wearable, and stretchable electronic devices.
Graphic abstract
Scheme of fabrication process and surface and cross-section of MnO2/Pt/PVDF-HFP nanofiber web
期刊介绍：
Original research on all aspects of polymer science, engineering and technology, including nanotechnology
Presents original research articles on all aspects of polymer science, engineering and technology
Coverage extends to such topics as nanotechnology, biotechnology and information technology
The English-language journal of the Polymer Society of Korea
Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.
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