Enhancing Electrochemical Influence of Nanocomposite Ti<sub>3</sub>C<sub>2</sub>T<sub><i>x</i></sub>/MoS<sub>2</sub> Layered Electrode for Hybrid Supercapacitor by Synergetic Effect
Jagadeesh Ramadoss, Manoj Christopher Mariadass, Jeyadheepan Karuppasamy, S. Arumugam, Mani Govindasamy
Abstract
Ti 3 C 2 T x is a 2D layered structure and a promising candidate for use as a working electrode material in electrochemical applications, similar to other 2D structured nanomaterials. Moreover, the surface of the Ti 3 C 2 T x material carries a negative charge and, owing to the presence of surface functional groups, exhibits hydrophilic properties. This is due to the formation of hydrogen bonds between water molecules and T x . A Ti 3 C 2 T x /MoS 2 composite was fabricated by using a hydrothermal approach. The composition of MoS 2 in conjunction with Ti 3 C 2 T x enhances the layered distance due to its synergetic effect. The electrode composition exhibits a significantly higher specific surface area of 34.2 m 2 /g –1 in comparison to that of the Ti 3 C 2 T x electrode. A supercapacitor device based on Ti 3 C 2 T x /MoS 2 is primarily fabricated using a 1 M LiClO 4 aqueous electrolyte. This prepared device achieves a high areal capacitance of 1227.2 F/cm 2 at a scan rate of 5 mVs –1 with 90% capacitance retention over 4000 cycles at a current density of 10 A/g, indicating good energy storage capacity. The enhanced ionic conductivity of the composite electrode is compared to that of pure Ti 3 C 2 T x . This research work presents an improved electrode layered structure for studying the electrochemical performance of Ti 3 C 2 T x and Ti 3 C 2 T x /MoS 2 displays as well as their applications in supercapacitor devices.