MXene based emerging materials for supercapacitor applications: Recent advances, challenges, and future perspectives

2D MXenes for combatting COVID-19 Pandemic: A perspective on latest developments and innovations

“…Ti 3 C 2 T x , Ti 2 CT x , Ti 2 NT x , Ti 3 CNT x , V 2 CT x , Nb 2 CT x , Cr 2 TiC 2 T x , Ti 3 SiC 2 T x , Mo 4 VC 4 T x , etc. are some of the examples of synthesized MXenes from which the Ti 3 C 2 T x is the most explored one [26] . Till now more than 30 MXenes have been synthesized and more than 100 MXene stoichiometries have been predicted by simulations, making them one of the largest families of 2D materials [17] .…”

Few-layered Ti3C2TXcoupled with Fe3O4nanoparticles assembled in a reduced graphene oxide hydrogel as advanced electrodes for high-energy supercapacitors

“…In addition, the abundant surface functional groups/atomic defects and 2D lamellar structures of Ti 3 C 2 T X provide opportunities for constructing synergetic heterostructures with high structural stability. [25][26][27] Due to these properties, Ti 3 C 2 T X have been considered as a promising candidate for conductive frameworks. However, the strong interlayer van der Waals interactions between adjacent Ti 3 C 2 T X nanosheets lead to a self-restacking phenomenon, which limits the utilization of the active surface area and the diffusion of ions, resulting in a poor performance.…”

Hierarchical MXene/transition metal oxide heterostructures for rechargeable batteries, capacitors, and capacitive deionization

“…Nevertheless, MXene electrodes suffer from the following issues: (1) low capacity or capacitance; (2) MXene sheets can be easily restacked during the preparation of the electrodes; (3) the electronic conductivity of MXene sheets decreases with the oxidation of the MXene; and (4) termination -F groups may influence the electrolyte infiltration into the electrodes. [57][58][59][60][61][62][63][64][65][66][67][68] To solve the above problems and enhance the electrochemical performance of MXenes, a lot of effort has been made to, for example, construct few-layer MXene sheets, 69 nanostructured MXene, 70,71 porous MXene, [72][73][74][75][76][77] MXene/transition metal oxides (TMOs), [78][79][80][81] and MXene/transition metal chalcogenides (TMCs). [82][83][84][85] In particular, constructing hierarchical MXene/ TMO heterostructures can remarkably improve the electrochemical performance of MXene-based electrodes in batteries, capacitors, and CDI.…”