Ultra-High Cycling Stability of 3D Flower-like Ce(COOH)<sub>3</sub> for Supercapacitor Electrode via a Facile and Scalable Strategy
An electrode material with high performance, long durability, and low cost for supercapacitors has long been desired in academia and industry. Among all the factors that affect the electrochemical performance and cycling stability of electrode materials, the morphology and intrinsic structure charac...
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| Format: | Article |
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MDPI AG
2023-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/19/6806 |
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| author | Qing He Wanglong Wang Ning Yang Wenmiao Chen Xing Yang Xing Fang Yuanxiang Zhang |
| author_facet | Qing He Wanglong Wang Ning Yang Wenmiao Chen Xing Yang Xing Fang Yuanxiang Zhang |
| author_sort | Qing He |
| collection | DOAJ |
| description | An electrode material with high performance, long durability, and low cost for supercapacitors has long been desired in academia and industry. Among all the factors that affect the electrochemical performance and cycling stability of electrode materials, the morphology and intrinsic structure characteristics are the most important. In this study, a novel 3D flower-like Ce(COOH)<sub>3</sub> electrode material was designed by taking advantage of the Ce<sup>3+</sup> and -COOH groups and fabricated by a one-pot microwave-assisted method. The morphology and structure characteristics of the sample were examined by SEM, EDS, TEM, XRD, FT-IR, XPS, N<sub>2</sub> adsorption/desorption techniques, and the electrochemical behaviors were investigated in a three-electrode configuration. The Ce(COOH)<sub>3</sub> electrode presents an excellent specific capacitance of 140 F g<sup>−1</sup> at 1 A g<sup>−1</sup>, higher than many other previously reported Ce-based electrodes. In addition, it delivers high rate capability that retains 60% of its initial capacitance when the current density is magnified 20 times. Dramatically, the Ce(COOH)<sub>3</sub> electrode exhibits an ultra-high cycling stability with capacitance retention of 107.9% after 60,000 cycles, which is the highest durability among reported Ce–organic compound electrodes to the best of our knowledge. The excellent electrochemical performance is ascribed to its intrinsic crystal structure and unique morphology. This work indicates that the 3D flower-like Ce(COOH)<sub>3</sub> has significant potential for supercapacitor applications and the facile and scalable synthesis strategy can be extended to produce other metal–organic composite electrodes. |
| first_indexed | 2024-03-10T21:39:24Z |
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| last_indexed | 2024-03-10T21:39:24Z |
| publishDate | 2023-09-01 |
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| series | Molecules |
| spelling | doaj.art-1e02a1c218454b50a016ebd574a147c32023-11-19T14:45:50ZengMDPI AGMolecules1420-30492023-09-012819680610.3390/molecules28196806Ultra-High Cycling Stability of 3D Flower-like Ce(COOH)<sub>3</sub> for Supercapacitor Electrode via a Facile and Scalable StrategyQing He0Wanglong Wang1Ning Yang2Wenmiao Chen3Xing Yang4Xing Fang5Yuanxiang Zhang6Key Laboratory of Air-Driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, ChinaDepartment of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310058, ChinaDepartment of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, ChinaDepartment of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310058, ChinaKey Laboratory of Air-Driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, ChinaKey Laboratory of Air-Driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, ChinaKey Laboratory of Air-Driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, ChinaAn electrode material with high performance, long durability, and low cost for supercapacitors has long been desired in academia and industry. Among all the factors that affect the electrochemical performance and cycling stability of electrode materials, the morphology and intrinsic structure characteristics are the most important. In this study, a novel 3D flower-like Ce(COOH)<sub>3</sub> electrode material was designed by taking advantage of the Ce<sup>3+</sup> and -COOH groups and fabricated by a one-pot microwave-assisted method. The morphology and structure characteristics of the sample were examined by SEM, EDS, TEM, XRD, FT-IR, XPS, N<sub>2</sub> adsorption/desorption techniques, and the electrochemical behaviors were investigated in a three-electrode configuration. The Ce(COOH)<sub>3</sub> electrode presents an excellent specific capacitance of 140 F g<sup>−1</sup> at 1 A g<sup>−1</sup>, higher than many other previously reported Ce-based electrodes. In addition, it delivers high rate capability that retains 60% of its initial capacitance when the current density is magnified 20 times. Dramatically, the Ce(COOH)<sub>3</sub> electrode exhibits an ultra-high cycling stability with capacitance retention of 107.9% after 60,000 cycles, which is the highest durability among reported Ce–organic compound electrodes to the best of our knowledge. The excellent electrochemical performance is ascribed to its intrinsic crystal structure and unique morphology. This work indicates that the 3D flower-like Ce(COOH)<sub>3</sub> has significant potential for supercapacitor applications and the facile and scalable synthesis strategy can be extended to produce other metal–organic composite electrodes.https://www.mdpi.com/1420-3049/28/19/6806Ce(COOH)<sub>3</sub>ultra-highcycling stabilitymicrowave-assistedsupercapacitor |
| spellingShingle | Qing He Wanglong Wang Ning Yang Wenmiao Chen Xing Yang Xing Fang Yuanxiang Zhang Ultra-High Cycling Stability of 3D Flower-like Ce(COOH)<sub>3</sub> for Supercapacitor Electrode via a Facile and Scalable Strategy Molecules Ce(COOH)<sub>3</sub> ultra-high cycling stability microwave-assisted supercapacitor |
| title | Ultra-High Cycling Stability of 3D Flower-like Ce(COOH)<sub>3</sub> for Supercapacitor Electrode via a Facile and Scalable Strategy |
| title_full | Ultra-High Cycling Stability of 3D Flower-like Ce(COOH)<sub>3</sub> for Supercapacitor Electrode via a Facile and Scalable Strategy |
| title_fullStr | Ultra-High Cycling Stability of 3D Flower-like Ce(COOH)<sub>3</sub> for Supercapacitor Electrode via a Facile and Scalable Strategy |
| title_full_unstemmed | Ultra-High Cycling Stability of 3D Flower-like Ce(COOH)<sub>3</sub> for Supercapacitor Electrode via a Facile and Scalable Strategy |
| title_short | Ultra-High Cycling Stability of 3D Flower-like Ce(COOH)<sub>3</sub> for Supercapacitor Electrode via a Facile and Scalable Strategy |
| title_sort | ultra high cycling stability of 3d flower like ce cooh sub 3 sub for supercapacitor electrode via a facile and scalable strategy |
| topic | Ce(COOH)<sub>3</sub> ultra-high cycling stability microwave-assisted supercapacitor |
| url | https://www.mdpi.com/1420-3049/28/19/6806 |
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