A facile synthesis of graphene/Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors
The electrochemical capability for the charge and energy storage of supercapacitors can be augmented by fabricating the hybrid and binder-free electrodes. In this work, the novel graphene/Co3V2O8 micro-pencils nanohybrids were successfully developed via the one-pot solvothermal method. The interacti...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2019-12-01
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| Series: | Journal of Science: Advanced Materials and Devices |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S246821791930231X |
| _version_ | 1811336302539309056 |
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| author | Wei Hau Low Chiu Wee Siong Chin Hua Chia Siew Shee Lim Poi Sim Khiew |
| author_facet | Wei Hau Low Chiu Wee Siong Chin Hua Chia Siew Shee Lim Poi Sim Khiew |
| author_sort | Wei Hau Low |
| collection | DOAJ |
| description | The electrochemical capability for the charge and energy storage of supercapacitors can be augmented by fabricating the hybrid and binder-free electrodes. In this work, the novel graphene/Co3V2O8 micro-pencils nanohybrids were successfully developed via the one-pot solvothermal method. The interactive effect between graphene and Co3V2O8 was investigated by varying their mass ratios. Benefiting from the peculiar morphology of Co3V2O8 micro-pencils and the homogenous distribution of Co3V2O8 on the graphene sheets, G-4CVO manifested a relatively promising specific capacitance of 528.17 F·g−1 at 0.5 A·g−1 while 80% of the charge storage capability was still retained even after 5000 continuous cycles. G-4CVO also delivered a remarkable energy density of 73 Wh/kg and these advanced electrochemical performances could be explicated by the integration of graphene sheets which shortens the ions and electrons transportation pathway and at the same time acts as a scaffold to alleviate the volume variation during the inter/de-intercalation process. Keywords: One-pot solvothermal, Graphene, Graphene/Co3V2O8, Supercapacitor |
| first_indexed | 2024-04-13T17:38:23Z |
| format | Article |
| id | doaj.art-ff4bad16440e45b687bcc2cbb66443ba |
| institution | Directory Open Access Journal |
| issn | 2468-2179 |
| language | English |
| last_indexed | 2024-04-13T17:38:23Z |
| publishDate | 2019-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Science: Advanced Materials and Devices |
| spelling | doaj.art-ff4bad16440e45b687bcc2cbb66443ba2022-12-22T02:37:18ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792019-12-0144515523A facile synthesis of graphene/Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitorsWei Hau Low0Chiu Wee Siong1Chin Hua Chia2Siew Shee Lim3Poi Sim Khiew4Department of Chemical and Environmental Engineering, Faculty of Engineering, The University of Nottingham Malaysia Campus, Jalan Broga, 43500, Semenyih, Selangor, Malaysia; Center of Nanotechnology and Advanced Materials, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500, Semenyih, Selangor, MalaysiaLow Dimensional Materials Research Center, Department of Physics, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, MalaysiaFaculty Science and Technology, School of Applied Physics, University Kebangsaan Malaysia, 43600, Bangi, Selangor, MalaysiaDepartment of Chemical and Environmental Engineering, Faculty of Engineering, The University of Nottingham Malaysia Campus, Jalan Broga, 43500, Semenyih, Selangor, MalaysiaCenter of Nanotechnology and Advanced Materials, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500, Semenyih, Selangor, Malaysia; Corresponding author.The electrochemical capability for the charge and energy storage of supercapacitors can be augmented by fabricating the hybrid and binder-free electrodes. In this work, the novel graphene/Co3V2O8 micro-pencils nanohybrids were successfully developed via the one-pot solvothermal method. The interactive effect between graphene and Co3V2O8 was investigated by varying their mass ratios. Benefiting from the peculiar morphology of Co3V2O8 micro-pencils and the homogenous distribution of Co3V2O8 on the graphene sheets, G-4CVO manifested a relatively promising specific capacitance of 528.17 F·g−1 at 0.5 A·g−1 while 80% of the charge storage capability was still retained even after 5000 continuous cycles. G-4CVO also delivered a remarkable energy density of 73 Wh/kg and these advanced electrochemical performances could be explicated by the integration of graphene sheets which shortens the ions and electrons transportation pathway and at the same time acts as a scaffold to alleviate the volume variation during the inter/de-intercalation process. Keywords: One-pot solvothermal, Graphene, Graphene/Co3V2O8, Supercapacitorhttp://www.sciencedirect.com/science/article/pii/S246821791930231X |
| spellingShingle | Wei Hau Low Chiu Wee Siong Chin Hua Chia Siew Shee Lim Poi Sim Khiew A facile synthesis of graphene/Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors Journal of Science: Advanced Materials and Devices |
| title | A facile synthesis of graphene/Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors |
| title_full | A facile synthesis of graphene/Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors |
| title_fullStr | A facile synthesis of graphene/Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors |
| title_full_unstemmed | A facile synthesis of graphene/Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors |
| title_short | A facile synthesis of graphene/Co3V2O8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors |
| title_sort | facile synthesis of graphene co3v2o8 nanocomposites and their enhanced charge storage performance in electrochemical capacitors |
| url | http://www.sciencedirect.com/science/article/pii/S246821791930231X |
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