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Quantum Capacitance of Mo2N MXene for Supercapacitor Applications |
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| Authors: | Bharti Beniwal Yogesh Kumar Meenal Gupta Shatendra Sharma |
| Affiliation: | 1. Department of Physics, Shivaji College, University of Delhi, New Delhi 110027, India;2. Department of Physics, ARSD College, University of Delhi, New Delhi 110021, India;3. Dipartimento di Ingegneria dell'Innovazione, Università del Salento, via Monteroni, Lecce 73100, Italy;4. Department of Physics, Netaji Subhas University of Technology, New Delhi 110078, India |
| Abstract: | MXenes for supercapacitor (SC) electrodes is a very promising area of research. Supercapacitors are still behind batteries when to be used as primary energy source due to their low energy densities. Hence, additional research is vital to explore materials like MXenes for SC electrodes. The electronic properties of molybdenum nitride Mo2N are studied and its quantum capacitance (QC) is calculated to explore its potential for SC electrodes. The MXene is found to be metallic in nature. The QC values for Mo2N MXene are extremely high around Fermi level. Maximum value of 746.69 µF cm−2 is achieved which is way higher than that of graphene. The value remains high for the negative bias voltage as well. |
| Keywords: | DFT DOS MXenes quantum capacitance |