Academic Journal
Two‐Dimensional Layered Metallic VSe 2 /SWCNTs/rGO Based Ternary Hybrid Materials for High Performance Energy Storage Applications
| العنوان: | Two‐Dimensional Layered Metallic VSe 2 /SWCNTs/rGO Based Ternary Hybrid Materials for High Performance Energy Storage Applications |
|---|---|
| المؤلفون: | Sree Raj, K. A., Shajahan, Afsal S., Chakraborty, Brahmananda, Rout, Chandra Sekhar |
| المساهمون: | Department of Science and Technology, Ministry of Science and Technology, India, Science and Engineering Research Board |
| المصدر: | Chemistry – A European Journal ; volume 26, issue 29, page 6662-6669 ; ISSN 0947-6539 1521-3765 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2020 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | In this work, the ternary hybrid structure VSe 2 /SWCNTs/rGO is reported for supercapacitor applications. The ternary composite exhibits a high specific capacitance of 450 F g −1 in a symmetric cell configuration, with maximum energy density of 131.4 Wh kg −1 and power density of 27.49 kW kg −1 . The ternary hybrid also shows a cyclic stability of 91 % after 5000 cycles. Extensive density functional theory (DFT) simulations on the structure as well as on the electronic properties of the binary hybrid structure VSe 2 /SWCNTs and the ternary hybrid structure VSe 2 /SWCNTs/rGO have been carried out. Due to a synergic effect, there are enhanced density of states near the Fermi level and higher quantum capacitance for the hybrid ternary structure compared to VSe 2 /SWCNTs, leading to higher energy and power density for VSe 2 /SWCNTs/rGO, supporting our experimental observation. Computed diffusion energy barrier of electrolyte ions (K + ) predicts that ions move faster in the ternary structure, providing higher charge storage performance. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/chem.202000243 |
| الاتاحة: | http://dx.doi.org/10.1002/chem.202000243 https://onlinelibrary.wiley.com/doi/pdf/10.1002/chem.202000243 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/chem.202000243 |
| Rights: | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| رقم الانضمام: | edsbas.29DA1144 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/chem.202000243 |
|---|