MXene-Derived Quantum Dots for Energy Conversion and Storage Applications

Abstract

The rising family of two-dimensional (2D) materials, MXene, has stirred great scientific interest due to their unique physicochemical properties and potential applications. Much research has focused on the creative strategy and rational development of MXene-derived quantum dots (MXQDs). They contribute to various applications such as sensing, biomedicine, catalysis, optoelectronic devices, energy storage and conversion, and so forth due to their unique properties compared to their 2D-MXene counterparts. Research has focused on the efficient synthetic strategies and potential applications of MXQDs, particularly toward energy conversion and energy storage applications. Therefore, it is highly useful to corroborate the existing data which could provide a decisive track for the booming research on electrocatalysts utilizing MXQDs as a new scaffold. Exploiting the platform, we have reviewed the various synthetic approaches employed to prepare MXQDs and their intriguing applications to develop challenging and fascinating energy conversion and energy storage devices. Furthermore, we have critically highlighted the prospects as well as the challenges. We hope this review will enlighten the path toward preparing more and more promising MXQDs-based materials with captivating properties and potential applications.

Recent Developments in Titanium Carbide (Ti3C2)-Based Layered Double Hydroxide (LDH) Nanocomposites for Energy Storage and Conversion Applications: A Minireview and Perspectives

“…MXene as a precursor has received widespread attention as a result of the unique structure that renders them particularly attractive for energy storage, conversion, and photocatalytic applications as a result of high metallic conductivity for fast electron transport, active surface redox sites, and negatively charged surface groups that supply abundant surface-active sites. , Moreover, MXene shows exclusive properties of hydrophilicity and simplicity of fabrication. These properties make MXene a prospective energy storage and conversion material. , The MXene materials have been hybridized with other materials to produce a MXene composite with considerably improved activity, outperforming the individual components . MXene hybridization with other materials modifies the electronic structure toward redox active species to enhance the performance while improving the quantity and availability toward the active sites …”

MXenes as Emerging Materials: Synthesis, Properties, and Applications

“…Ball-milling [ 51 ], liquid exfoliation, chemical etching, electrochemical [ 52 ], intercalation, hydrothermal/solvothermal treatment, ultra-sonication, microwave irradiation, and other procedures are among them. The majority of the top-down approaches establish the initial O 2 -containing functionalities on the surface of catalysts, which facilitate the creation of defects in the catalysts [ 53 ]. The surface defects serve as reactive sites and allow the bulk molecules to split into tiny quantum particles [ 54 ].…”

Quantum Dots Compete at the Acme of MXene Family for the Optimal Catalysis

“…It determines the light absorption range of the photocatalyst from ultraviolet to near-infrared (NIR) regions, affecting the amount of photogenerated carriers. Such PL properties are related to size, surface composition, and the pH of solution of MQDs [ 224 ]. Ti 3 C 2 MQDs show white light, blue light in dimethyl sulfoxide (DMSO), N, N-Dimethylformamide (DMF), and ethanol, respectively, under the excitation wavelength of 365 nm [ 96 ].…”