Ti3C2-Ag nanocomposites were synthesized, and their physical and electrochemical characteristics were investigated during the proposed study. This research aims at a new anode material for lithium-ion batteries (LIBs), Ag nanoparticle-decorated MXene (Ti3C2-Ag). The MXenes are resistant to oxidation, outstanding thermal and electrical conductivity, high electrochemical efficiency, composition flexibility, and a large specific surface area but because of the narrow gap between different MXene layers, coating the inner surface of MXene layers with metal oxide nanoparticles is difficult and time-consuming. SEM images revealed the growth of a nano-sized material with a well-homogeneous particle size distribution. Elemental mapping photos illustrate a uniform distribution of various elements throughout the material. The nanocomposite morphology developed consisted of Ag particles 50 nm in size, evenly dispersed in Ti3C2--MXene layers. For the electrochemical characteristics of Ti3C2--Ag nanocomposite, several electrochemical methods such as cyclic voltammetry, galvanostatic cycling, rates capability, and electrochemical impedance were comprehensively examined. When deployed as LIB anodes, Ti3C2--Ag nanocomposite outperformed pure Ti3C2-, providing greater performance and enhanced cycle efficiency. After 100 cycles at a current density of 0.1C, Ti3C2--Ag nanocomposite displayed good cyclic stability with a highly reversible potential of roughly 524 mAhg-1. In addition, the rate capability is exceptional (up to 180 mAhg-1 at a current density of 10C). These properties are obtained from the Ti3C2--Ag nanocomposite's unique composition. Furthermore, carefully coated Ti3C2- and Ti3+ layers produce high conductivity in MXene layers. Furthermore, Li+ ions can readily diffuse to the electrode through coated MXene layers.

Silver grafted TI3C2-MXene nanocomposite as novel anode materials for Lithium-ion batteries

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ACS Fall 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.