Predominated capacitive behavior of Ag-doped magnesium vanadate as a novel electrode material for supercapacitors
dc.contributor.author | Umair, Muhammad | |
dc.contributor.author | Shad, Naveed Akhtar | |
dc.contributor.author | Hussain, S. | |
dc.contributor.author | Jilani, Asim | |
dc.contributor.author | Sajid, Muhammad Munir | |
dc.contributor.author | Arshad, Muhammad Imran | |
dc.contributor.author | Hasnain Rana, Hafiz Talha | |
dc.contributor.author | Sharma, Surender Kumar | |
dc.contributor.author | Mishra, Yogendra Kumar | |
dc.contributor.author | Javed, Yasir | |
dc.date.accessioned | 2024-01-21T10:42:55Z | |
dc.date.accessioned | 2024-08-13T12:44:59Z | |
dc.date.available | 2024-01-21T10:42:55Z | |
dc.date.available | 2024-08-13T12:44:59Z | |
dc.date.issued | 2023-06-11T00:00:00 | |
dc.description.abstract | Transition metal vanadate nanostructures are getting significant importance as an efficient electrode material for modern energy storage applications. In this work, a simple hydrothermal method is employed for the synthesis of magnesium vanadate (MgV2O5) and Ag-doped magnesium vanadate (Ag doped MgV3O8) nanomaterials. The X-ray diffraction (XRD) analysis reveals the formation of an orthorhombic structure for magnesium vanadate, whereas the Ag-doped magnesium vanadate results in a monoclinic structure. Interestingly, the optical bandgap is observed to increase from 2.85 eV to 3.92 eV with the increase in Ag-doping as revealed from Tauc's plot of the UV-visible absorption spectrum. The electrochemical performance of magnesium vanadate electrodes is thoroughly investigated by cyclic voltammetry (CV), Galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy. The Ag-doped magnesium vanadate shows higher specific capacitance (Cs = 706 Fg?1) in comparison to undoped (325 Fg?1) at a current density J = 5 Ag?1. The theoretical investigations through Dunn's model demonstrate a major contribution arises from surface-controlled processes, which increase as high as 91% at scan rate of 60 mVsec?1. Our findings indicate that Ag-doping significantly improves the overall electrochemical response of magnesium vanadate as an efficient electrode material for supercapacitor applications. � 2023 Hydrogen Energy Publications LLC | en_US |
dc.identifier.doi | 10.1016/j.ijhydene.2023.05.279 | |
dc.identifier.issn | 3603199 | |
dc.identifier.uri | https://kr.cup.edu.in/handle/32116/3771 | |
dc.identifier.url | https://linkinghub.elsevier.com/retrieve/pii/S0360319923026691 | |
dc.language.iso | en_US | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.subject | Electrochemical properties | en_US |
dc.subject | Silver doped magnesium vanadate | en_US |
dc.subject | Surface-controlled process | en_US |
dc.title | Predominated capacitive behavior of Ag-doped magnesium vanadate as a novel electrode material for supercapacitors | en_US |
dc.title.journal | International Journal of Hydrogen Energy | en_US |
dc.type | Article | en_US |
dc.type.accesstype | Closed Access | en_US |