Author(s):
Mahaveer Singh, Bheem Kumar, Pushpendra Kumar Meena and Kedar Singh

Abstract:
The increasing demand for effective energy storage devices has enhanced the need of durable electrode materials for supercapacitors. In this work, Ti3C2Tx MXene nanosheets was synthesized via HF etching and subsequent delamination to obtain layered 2D nanosheets. The structural and morphological properties were examined using XRD pattern, SEM, and TEM, confirming the successful synthesis of layered structure, while UV–Visible spectroscopy indicated its optical response. The electrochemical performance was evaluated in a three-electrode setup using nickel foil as the current collector substrate. Cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) measurements show excellent capacitive behaviour, delivering a notable specific capacitance of 535 F g-1 at current density of 1 A g-1. Electrochemical impedance spectroscopy (EIS) revealed low Rs and efficient charge transfer kinetics, supporting enhanced electrochemical performance. The superior capacitance is due to the high conductivity, wide surface area, and rapid ion transport within the Ti3C2Tx MXene nanosheets, demonstrating that Ti3C2Tx is an effective electrode material for high performing supercapacitor application.

Pages: 954-963

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