Vanadium metal‐organic framework‐derived multifunctional fibers for asymmetric supercapacitor, piezoresistive sensor, and electrochemical water splitting
Abstract Fiber‐shaped integrated devices are highly desirable for wearable and portable smart electronics, owing to their merits of lightweight, high flexibility, and wearability. However, how to effectively employ multifunctional fibers in one integrated device that can simultaneously achieve energ...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-12-01
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| Series: | SmartMat |
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| Online Access: | https://doi.org/10.1002/smm2.1088 |
| _version_ | 1797979896286281728 |
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| author | Jie Pu Yong Gao Qinghe Cao Gangwen Fu Xing Chen Zhenghui Pan Cao Guan |
| author_facet | Jie Pu Yong Gao Qinghe Cao Gangwen Fu Xing Chen Zhenghui Pan Cao Guan |
| author_sort | Jie Pu |
| collection | DOAJ |
| description | Abstract Fiber‐shaped integrated devices are highly desirable for wearable and portable smart electronics, owing to their merits of lightweight, high flexibility, and wearability. However, how to effectively employ multifunctional fibers in one integrated device that can simultaneously achieve energy storage and utilization is a major challenge. Herein, a set of multifunctional fibers all derived from vanadium metal‐organic framework nanowires grown on carbon nanotube fiber (V‐MOF NWs@CNT fiber) is demonstrated, which can be used for various energy storage and utilization applications. First, a fiber‐shaped asymmetric supercapacitor (FASC) is fabricated based on the CoNi‐layered double hydroxide nanosheets@vanadium oxide NWs@CNT fiber (CoNi‐LDH NSs@V2O5 NWs@CNT fiber) as the positive electrode and vanadium nitride (VN) NWs@CNT fiber as the negative electrode. Benefiting from the outstanding compatibility of the functional materials, the FASC with a maximum working voltage of 1.7 V delivers a high‐stack volumetric energy density of 11.27 mW·h/cm3. Then, a fiber‐shaped integrated device is assembled by twisting a fiber‐shaped piezoresistive sensor (FPS; VN NWs@CNT fiber also served as the highly sensitive material) and a FASC together, where the high‐performance FASC can provide a stable and continuous output power for the FPS. Finally, the S‐VOx NWs@CNT fiber (sulfur‐doped vanadium oxide) electrode shows promising electrocatalytic performance for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which is further constructed into a self‐driven water‐splitting unit with the integration of the FASCs. The present work demonstrates that the V‐MOF NWs@CNT‐derived fibers have great potential for constructing wearable multifunctional integrated devices. |
| first_indexed | 2024-04-11T05:47:06Z |
| format | Article |
| id | doaj.art-c6b703b9a7c5445e850c2e5710b24a3c |
| institution | Directory Open Access Journal |
| issn | 2688-819X |
| language | English |
| last_indexed | 2024-04-11T05:47:06Z |
| publishDate | 2022-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | SmartMat |
| spelling | doaj.art-c6b703b9a7c5445e850c2e5710b24a3c2022-12-22T04:42:13ZengWileySmartMat2688-819X2022-12-013460861810.1002/smm2.1088Vanadium metal‐organic framework‐derived multifunctional fibers for asymmetric supercapacitor, piezoresistive sensor, and electrochemical water splittingJie Pu0Yong Gao1Qinghe Cao2Gangwen Fu3Xing Chen4Zhenghui Pan5Cao Guan6Institute of Flexible Electronics, Frontiers Science Center for Flexible Electronics Northwestern Polytechnical University Xi'an ChinaInstitute of Flexible Electronics, Frontiers Science Center for Flexible Electronics Northwestern Polytechnical University Xi'an ChinaInstitute of Flexible Electronics, Frontiers Science Center for Flexible Electronics Northwestern Polytechnical University Xi'an ChinaInstitute of Flexible Electronics, Frontiers Science Center for Flexible Electronics Northwestern Polytechnical University Xi'an ChinaShaanxi Engineering Research Center for Digital Manufacturing Technology Northwestern Polytechnical University Xi'an ChinaDepartment of Materials Science and Engineering National University of Singapore Singapore SingaporeInstitute of Flexible Electronics, Frontiers Science Center for Flexible Electronics Northwestern Polytechnical University Xi'an ChinaAbstract Fiber‐shaped integrated devices are highly desirable for wearable and portable smart electronics, owing to their merits of lightweight, high flexibility, and wearability. However, how to effectively employ multifunctional fibers in one integrated device that can simultaneously achieve energy storage and utilization is a major challenge. Herein, a set of multifunctional fibers all derived from vanadium metal‐organic framework nanowires grown on carbon nanotube fiber (V‐MOF NWs@CNT fiber) is demonstrated, which can be used for various energy storage and utilization applications. First, a fiber‐shaped asymmetric supercapacitor (FASC) is fabricated based on the CoNi‐layered double hydroxide nanosheets@vanadium oxide NWs@CNT fiber (CoNi‐LDH NSs@V2O5 NWs@CNT fiber) as the positive electrode and vanadium nitride (VN) NWs@CNT fiber as the negative electrode. Benefiting from the outstanding compatibility of the functional materials, the FASC with a maximum working voltage of 1.7 V delivers a high‐stack volumetric energy density of 11.27 mW·h/cm3. Then, a fiber‐shaped integrated device is assembled by twisting a fiber‐shaped piezoresistive sensor (FPS; VN NWs@CNT fiber also served as the highly sensitive material) and a FASC together, where the high‐performance FASC can provide a stable and continuous output power for the FPS. Finally, the S‐VOx NWs@CNT fiber (sulfur‐doped vanadium oxide) electrode shows promising electrocatalytic performance for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which is further constructed into a self‐driven water‐splitting unit with the integration of the FASCs. The present work demonstrates that the V‐MOF NWs@CNT‐derived fibers have great potential for constructing wearable multifunctional integrated devices.https://doi.org/10.1002/smm2.1088asymmetric supercapacitorelectrochemical water splittingfiber‐shape integrated devicesmultifunctionalpiezoresistive sensorV‐MOF |
| spellingShingle | Jie Pu Yong Gao Qinghe Cao Gangwen Fu Xing Chen Zhenghui Pan Cao Guan Vanadium metal‐organic framework‐derived multifunctional fibers for asymmetric supercapacitor, piezoresistive sensor, and electrochemical water splitting SmartMat asymmetric supercapacitor electrochemical water splitting fiber‐shape integrated devices multifunctional piezoresistive sensor V‐MOF |
| title | Vanadium metal‐organic framework‐derived multifunctional fibers for asymmetric supercapacitor, piezoresistive sensor, and electrochemical water splitting |
| title_full | Vanadium metal‐organic framework‐derived multifunctional fibers for asymmetric supercapacitor, piezoresistive sensor, and electrochemical water splitting |
| title_fullStr | Vanadium metal‐organic framework‐derived multifunctional fibers for asymmetric supercapacitor, piezoresistive sensor, and electrochemical water splitting |
| title_full_unstemmed | Vanadium metal‐organic framework‐derived multifunctional fibers for asymmetric supercapacitor, piezoresistive sensor, and electrochemical water splitting |
| title_short | Vanadium metal‐organic framework‐derived multifunctional fibers for asymmetric supercapacitor, piezoresistive sensor, and electrochemical water splitting |
| title_sort | vanadium metal organic framework derived multifunctional fibers for asymmetric supercapacitor piezoresistive sensor and electrochemical water splitting |
| topic | asymmetric supercapacitor electrochemical water splitting fiber‐shape integrated devices multifunctional piezoresistive sensor V‐MOF |
| url | https://doi.org/10.1002/smm2.1088 |
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