Quantum Capacitance of Mo2N MXene for Supercapacitor Applications

Author:

Beniwal Bharti1ORCID,Kumar Yogesh2,Gupta Meenal3,Sharma Shatendra4

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

AbstractMXenes 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.

Publisher

Wiley

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