A Hollow-Shaped ZIF-8-N-Doped Porous Carbon Fiber for High-Performance Zn-Ion Hybrid Supercapacitors
The advantages of low cost, high theoretical capacity, and dependable safety of aqueous zinc ion hybrid supercapacitors (ZHSCs) enable their promising use in flexible and wearable energy storage devices. However, achieving extended cycling stability in ZHSCs is still challenged by the limited availa...
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MDPI AG
2023-08-01
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| Online Access: | https://www.mdpi.com/2313-0105/9/8/405 |
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| author | Mingqi Wei Zhenlong Jiang Chengcheng Yang Tao Jiang Linlin Zhang Guangzhen Zhao Guang Zhu Lianghao Yu Yuanyuan Zhu |
| author_facet | Mingqi Wei Zhenlong Jiang Chengcheng Yang Tao Jiang Linlin Zhang Guangzhen Zhao Guang Zhu Lianghao Yu Yuanyuan Zhu |
| author_sort | Mingqi Wei |
| collection | DOAJ |
| description | The advantages of low cost, high theoretical capacity, and dependable safety of aqueous zinc ion hybrid supercapacitors (ZHSCs) enable their promising use in flexible and wearable energy storage devices. However, achieving extended cycling stability in ZHSCs is still challenged by the limited availability of carbon cathode materials that can effectively pair with zinc anode materials. Here, we report a method for synthesising heteroatom-doped carbon nanofibers using electrostatic spinning and metal-organic frameworks (specifically ZIF-8). Assembled Zn//ZPCNF-1.5 ZHSCs exhibited 193 mA h g<sup>−1</sup> specific capacity at 1 A g<sup>−1</sup> and 162.6 Wh kg<sup>−1</sup> energy density at 841.2 kW kg<sup>−1</sup>. Additionally, the device showed an ultra-long cycle life, maintaining 98% capacity after 20,000 cycles. Experimental analysis revealed an increase in the number of pores and active sites after adding ZIF-8 to the precursor. Furthermore, N doping effectively enhanced Zn<sup>2+</sup> ions chemical adsorption and improved Zn-ion storage performance. This work provides a feasible design strategy to enhance ZHSC energy storage capability for practical applications. |
| first_indexed | 2024-03-11T00:07:15Z |
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| id | doaj.art-35c36ec5fcae4d9d95e80dd7ae7925bd |
| institution | Directory Open Access Journal |
| issn | 2313-0105 |
| language | English |
| last_indexed | 2024-03-11T00:07:15Z |
| publishDate | 2023-08-01 |
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| spelling | doaj.art-35c36ec5fcae4d9d95e80dd7ae7925bd2023-11-19T00:15:44ZengMDPI AGBatteries2313-01052023-08-019840510.3390/batteries9080405A Hollow-Shaped ZIF-8-N-Doped Porous Carbon Fiber for High-Performance Zn-Ion Hybrid SupercapacitorsMingqi Wei0Zhenlong Jiang1Chengcheng Yang2Tao Jiang3Linlin Zhang4Guangzhen Zhao5Guang Zhu6Lianghao Yu7Yuanyuan Zhu8School of Mechanics and Optoelectronics Physics, Anhui University of Science and Technology, Huainan 232001, ChinaKey Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, ChinaKey Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, ChinaKey Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, ChinaSchool of Mechanics and Optoelectronics Physics, Anhui University of Science and Technology, Huainan 232001, ChinaKey Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, ChinaSchool of Mechanics and Optoelectronics Physics, Anhui University of Science and Technology, Huainan 232001, ChinaKey Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, ChinaKey Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, ChinaThe advantages of low cost, high theoretical capacity, and dependable safety of aqueous zinc ion hybrid supercapacitors (ZHSCs) enable their promising use in flexible and wearable energy storage devices. However, achieving extended cycling stability in ZHSCs is still challenged by the limited availability of carbon cathode materials that can effectively pair with zinc anode materials. Here, we report a method for synthesising heteroatom-doped carbon nanofibers using electrostatic spinning and metal-organic frameworks (specifically ZIF-8). Assembled Zn//ZPCNF-1.5 ZHSCs exhibited 193 mA h g<sup>−1</sup> specific capacity at 1 A g<sup>−1</sup> and 162.6 Wh kg<sup>−1</sup> energy density at 841.2 kW kg<sup>−1</sup>. Additionally, the device showed an ultra-long cycle life, maintaining 98% capacity after 20,000 cycles. Experimental analysis revealed an increase in the number of pores and active sites after adding ZIF-8 to the precursor. Furthermore, N doping effectively enhanced Zn<sup>2+</sup> ions chemical adsorption and improved Zn-ion storage performance. This work provides a feasible design strategy to enhance ZHSC energy storage capability for practical applications.https://www.mdpi.com/2313-0105/9/8/405electrospinningZinc-ion hybrid supercapacitorsheteroatom dopingcyclic stability |
| spellingShingle | Mingqi Wei Zhenlong Jiang Chengcheng Yang Tao Jiang Linlin Zhang Guangzhen Zhao Guang Zhu Lianghao Yu Yuanyuan Zhu A Hollow-Shaped ZIF-8-N-Doped Porous Carbon Fiber for High-Performance Zn-Ion Hybrid Supercapacitors Batteries electrospinning Zinc-ion hybrid supercapacitors heteroatom doping cyclic stability |
| title | A Hollow-Shaped ZIF-8-N-Doped Porous Carbon Fiber for High-Performance Zn-Ion Hybrid Supercapacitors |
| title_full | A Hollow-Shaped ZIF-8-N-Doped Porous Carbon Fiber for High-Performance Zn-Ion Hybrid Supercapacitors |
| title_fullStr | A Hollow-Shaped ZIF-8-N-Doped Porous Carbon Fiber for High-Performance Zn-Ion Hybrid Supercapacitors |
| title_full_unstemmed | A Hollow-Shaped ZIF-8-N-Doped Porous Carbon Fiber for High-Performance Zn-Ion Hybrid Supercapacitors |
| title_short | A Hollow-Shaped ZIF-8-N-Doped Porous Carbon Fiber for High-Performance Zn-Ion Hybrid Supercapacitors |
| title_sort | hollow shaped zif 8 n doped porous carbon fiber for high performance zn ion hybrid supercapacitors |
| topic | electrospinning Zinc-ion hybrid supercapacitors heteroatom doping cyclic stability |
| url | https://www.mdpi.com/2313-0105/9/8/405 |
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