Three-dimensional lion's mane like AlV3O9 deposited on graphene surface for supercapacitors with a promising electrochemical performance
3D lion's mane like AlV3O9 microspheres deposited on the well-exfoliated graphene were successfully synthesised through a facile solvothermal method where the graphene sheet was prepared solely via the liquid phase exfoliation process. The highly electrical conductive graphene was introduced as...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-06-01
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| Series: | Journal of Science: Advanced Materials and Devices |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S246821792030037X |
| _version_ | 1828838303130976256 |
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| author | Wei Hau Low Siew Shee Lim Chin Hua Chia Chiu Wee Siong Poi Sim Khiew |
| author_facet | Wei Hau Low Siew Shee Lim Chin Hua Chia Chiu Wee Siong Poi Sim Khiew |
| author_sort | Wei Hau Low |
| collection | DOAJ |
| description | 3D lion's mane like AlV3O9 microspheres deposited on the well-exfoliated graphene were successfully synthesised through a facile solvothermal method where the graphene sheet was prepared solely via the liquid phase exfoliation process. The highly electrical conductive graphene was introduced as a conductive substrate or a backbone to support the diffusion of the electrolyte ions (OH−). In order to achieve the optimum electrochemical performance, graphene/AlV3O9 nanocomposites with different weight ratios were fabricated wherein G-5AlV possessed an exceptional charge storage ability which surpasses that of other nanocomposites. The G-5AlV sample was found to possess a magnificent specific capacitance of 551.72 F∙g−1 at 0.5 A∙g−1 and achieve a remaining capacitance of 468.97 F∙g−1 as the current density was increased. After 5000 continuous intercalation/de-intercalation processes, G-5AlV delivered a specific capacitance of 441.38 F∙g−1 and a coulombic efficiency of 95%, confirming its remarkable cycling stability and coulombic efficiency. More importantly, it exhibits good energy and power densities as a symmetric supercapacitor, further suggesting itself as a potential candidate for use in high-performance charge storage devices. |
| first_indexed | 2024-12-12T18:59:17Z |
| format | Article |
| id | doaj.art-928d992e661f4168a356cabb8242eb9c |
| institution | Directory Open Access Journal |
| issn | 2468-2179 |
| language | English |
| last_indexed | 2024-12-12T18:59:17Z |
| publishDate | 2020-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Science: Advanced Materials and Devices |
| spelling | doaj.art-928d992e661f4168a356cabb8242eb9c2022-12-22T00:15:08ZengElsevierJournal of Science: Advanced Materials and Devices2468-21792020-06-0152164172Three-dimensional lion's mane like AlV3O9 deposited on graphene surface for supercapacitors with a promising electrochemical performanceWei Hau Low0Siew Shee Lim1Chin Hua Chia2Chiu Wee Siong3Poi 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, MalaysiaDepartment of Chemical and Environmental Engineering, Faculty of Engineering, The University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, MalaysiaFaculty Science and Technology, School of Applied Physics, University Kebangsaan Malaysia, 43600 Bangi, Selangor, MalaysiaLow Dimensional Materials Research Center, Department of Physics, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, MalaysiaCenter of Nanotechnology and Advanced Materials, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia; Corresponding author.3D lion's mane like AlV3O9 microspheres deposited on the well-exfoliated graphene were successfully synthesised through a facile solvothermal method where the graphene sheet was prepared solely via the liquid phase exfoliation process. The highly electrical conductive graphene was introduced as a conductive substrate or a backbone to support the diffusion of the electrolyte ions (OH−). In order to achieve the optimum electrochemical performance, graphene/AlV3O9 nanocomposites with different weight ratios were fabricated wherein G-5AlV possessed an exceptional charge storage ability which surpasses that of other nanocomposites. The G-5AlV sample was found to possess a magnificent specific capacitance of 551.72 F∙g−1 at 0.5 A∙g−1 and achieve a remaining capacitance of 468.97 F∙g−1 as the current density was increased. After 5000 continuous intercalation/de-intercalation processes, G-5AlV delivered a specific capacitance of 441.38 F∙g−1 and a coulombic efficiency of 95%, confirming its remarkable cycling stability and coulombic efficiency. More importantly, it exhibits good energy and power densities as a symmetric supercapacitor, further suggesting itself as a potential candidate for use in high-performance charge storage devices.http://www.sciencedirect.com/science/article/pii/S246821792030037XGrapheneGraphene/AlV3O9SolvothermalSupercapacitor |
| spellingShingle | Wei Hau Low Siew Shee Lim Chin Hua Chia Chiu Wee Siong Poi Sim Khiew Three-dimensional lion's mane like AlV3O9 deposited on graphene surface for supercapacitors with a promising electrochemical performance Journal of Science: Advanced Materials and Devices Graphene Graphene/AlV3O9 Solvothermal Supercapacitor |
| title | Three-dimensional lion's mane like AlV3O9 deposited on graphene surface for supercapacitors with a promising electrochemical performance |
| title_full | Three-dimensional lion's mane like AlV3O9 deposited on graphene surface for supercapacitors with a promising electrochemical performance |
| title_fullStr | Three-dimensional lion's mane like AlV3O9 deposited on graphene surface for supercapacitors with a promising electrochemical performance |
| title_full_unstemmed | Three-dimensional lion's mane like AlV3O9 deposited on graphene surface for supercapacitors with a promising electrochemical performance |
| title_short | Three-dimensional lion's mane like AlV3O9 deposited on graphene surface for supercapacitors with a promising electrochemical performance |
| title_sort | three dimensional lion s mane like alv3o9 deposited on graphene surface for supercapacitors with a promising electrochemical performance |
| topic | Graphene Graphene/AlV3O9 Solvothermal Supercapacitor |
| url | http://www.sciencedirect.com/science/article/pii/S246821792030037X |
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