Highly Efficient Photo Rechargeable Supercapacitor based on Ambipolar Interface of Graphitic Carbon Nitride and MXene

Kumar, S and Mondal, A and Panwar, V and Shekhawat, R and Misra, A (2023) Highly Efficient Photo Rechargeable Supercapacitor based on Ambipolar Interface of Graphitic Carbon Nitride and MXene. In: Batteries and Supercaps .

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Abstract

Dual-functional materials for both the optically and the electrochemically active electrode enable efficient direct storage of solar energy into electrical energy. A photo rechargeable supercapacitor is developed using an ambipolar interface of MXene (Ti3C2TX) and protonated graphitic carbon nitride under light illumination. An extraordinarily large increase of 1960 in the electrochemical capacitance is measured under the light illumination (420 nm) compared to its dark capacitance. Ambipolar interface induces an anomalous increase in the capacitance at an ultra-high scan rate of 1.5�105 mV/s under the light illumination. Moreover, the photo-assisted, voltage of ~270 mV is generated in the rechargeable supercapacitor. The extraordinary results are attributed to the attractive interface of oppositely charged MXene and protonated graphitic carbon nitride. © 2023 Wiley-VCH GmbH.

Item Type:	Journal Article
Publication:	Batteries and Supercaps
Publisher:	John Wiley and Sons Inc
Additional Information:	The copyright for this article belongs to John Wiley and Sons Inc.
Keywords:	Capacitance; Functional materials; Protonation; Solar energy; Supercapacitor, Active electrodes; Ambipolar; Electrical energy; Electrochemical capacitance; Graphitic carbon nitrides; Light illumination; Mxene; Photo rechargeable supercapacitor; Protonated; Self-powered, Carbon nitride
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	04 Mar 2024 08:00
Last Modified:	04 Mar 2024 08:00
URI:	https://eprints.iisc.ac.in/id/eprint/84308

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