Influence on effective and ineffective delamination of MXene (Ti3C2Tx) by tightly anchoring tin oxide nanocomposite for boosting the specific capacitance of supercapacitor

• Published in: Journal of alloys and compounds 2022-11, Vol.921, p.166092, Article 166092
• Main Authors: Prabhakar, N., Rajapriya, A., Ponpandian, N., Viswanathan, C.
• Format: Article
• Language: English
• Subjects: Capacitance; Charge materials; Delamination; Discharge; Effective delamination; Electrode materials; Electrodes; Electrolytes; Electron transport; Energy storage; Fossil fuels; Ion diffusion; Ion migration; Ions; MXene; MXenes; Nanocomposite; Nanocomposites; Nanoparticles; Potassium hydroxides; Pseudocapacitor; Supercapacitor; Supercapacitors; Tin dioxide; Tin oxide; Tin oxides
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2022.166092

Rich surface functionalization properties and ion diffusion behavior make MXene a promising material for better self-discharge properties for Supercapacitor application. Utilizing a new electrode material for the renewable energy storage device is a very important factor for the environmental safety from the threatening fossil fuels. Herein, we report a highly capacitive and fast charge-discharge electrode material assembled by tightly anchoring SnO2 over Ti3C2Tx flakes (graphite sheet as a current collector) and the electrolyte Potassium Hydroxide (KOH) as a new promising material for supercapacitor electrode. XRD analysis with FESEM imaging showed that the tetragonal rutile structure of SnO2 nanoparticles was uniformly grown on the surface of sheet-like Ti3C2Tx. By optimizing Ti3C2Tx through delamination using TMAOH (Tetramethylammonium Hydroxide) and introducing SnO2 nanoparticles onto it by simple sonication, the developed electrode material delivered a maximum of specific capacitance (669 Fg−1 in the alkaline electrolyte) with stable cyclic performances (90% of retainability over Six thousand cycles) and shows a good rate performance. The comparison of delaminated and without delaminated samples reveals that the delaminated electrode can avoid the restacking of 2D MXene sheets and hence improve ion migration and electron transport in energy storage devices. This predominant performance demonstrated that Delaminated MXene/ SnO2 can effectively advance the future of electrode material for next-level supercapacitor applications. [Display omitted] •The electrode material of SnO2 over Mxene sheets by simple sonication method.•Delaminated Mxene/Tin Oxide exhibited unique morphology.•The developed electrode delivered a specific capacitance of 669 Fg−1 at 1 Ag−1.•Influence on delaminated Mxene for boosting Specific capacitance in Supercapacitor.•90% of retainability over 6000 cycles and shows a good rate capability.