دورية أكاديمية
Improved Charge Storage Capacity of Supercapacitor Electrodes by Engineering Surfaces: The Case of Janus MXenes
| العنوان: | Improved Charge Storage Capacity of Supercapacitor Electrodes by Engineering Surfaces: The Case of Janus MXenes |
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| المؤلفون: | Mandira Das, Subhradip Ghosh |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biochemistry, Medicine, Cell Biology, Physiology, Biotechnology, Space Science, Environmental Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, classical solvation model, point mxenes nb, charge storage capacities, suggests surface engineering, 2 , three janus mxenes, mxene electrodes significantly, janus mxenes, surface manipulation, mxene family, engineering surfaces, charge state, useful technique, possible route, janus compound, improved functionality, functional properties, electrochemical properties, electrochemical parameters, depth analysis, corresponding end |
| الوصف: | Surface engineering in two-dimensional (2D) materials has turned out to be a useful technique to improve their functional properties. By designing Janus compounds MM′C in the MXene family of compounds M 2 C, where the two surfaces are constituted by two different transition metals M and M′, we have explored their potentials as electrodes in a supercapacitor with an acidic electrolyte. Using density functional theory (DFT) in conjunction with the classical solvation model, we have made an in-depth analysis of the electrochemical parameters of three Janus MXenes, passivated by oxygen: NbVC, MnVC, and CrMnC. Comparisons with the corresponding end-point MXenes Nb 2 C, V 2 C, Mn 2 C, and Cr 2 C are also made. We find that the surface redox activity enhances due to the formation of Janus, improving the charge storage capacities of MXene electrodes significantly. Our analysis reveals that the improved functionality has its root in the variations in the charge state of one of the constituents in the Janus compound, which, in turn, has its origin in the electronic structure changes due to surface manipulation. Our work, which is the first on the electrochemical properties of Janus MXenes for supercapacitor applications, suggests surface engineering by forming appropriate Janus compounds as a possible route to extract high energy density in MXene electrode–acidic electrolyte-based energy storage devices. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| العلاقة: | https://figshare.com/articles/journal_contribution/Improved_Charge_Storage_Capacity_of_Supercapacitor_Electrodes_by_Engineering_Surfaces_The_Case_of_Janus_MXenes/24981770Test |
| DOI: | 10.1021/acs.jpcc.3c07443.s001 |
| الإتاحة: | https://doi.org/10.1021/acs.jpcc.3c07443.s001Test https://figshare.com/articles/journal_contribution/Improved_Charge_Storage_Capacity_of_Supercapacitor_Electrodes_by_Engineering_Surfaces_The_Case_of_Janus_MXenes/24981770Test |
| حقوق: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.994778DA |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acs.jpcc.3c07443.s001 |
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