MXene/Ferrite Magnetic Nanocomposites for Electrochemical Supercapacitor Applications

Abstract

MXene has been identified as a new emerging material for various applications including energy storage, electronics, and bio-related due to its wider physicochemical characteristics. Further the formation of hybrid composites of MXene with other materials makes them interesting to utilize in multifunctional applications. The selection of magnetic nanomaterials for the formation of nanocomposite with MXene would be interesting for the utilization of magnetic characteristics along with MXene. However, the selection of the magnetic nanomaterials is important, as the magnetic characteristics of the ferrites vary with the stoichiometric composition of metal ions, particle shape and size. The selection of the electrolyte is also important for electrochemical energy storage applications, as the electrolyte could influence the electrochemical performance. Further, the external magnetic field also could influence the electrochemical performance. This review briefly discusses the synthesis method of MXene, and ferrite magnetic nanoparticles and their composite formation. We also discussed the recent progress made on the MXene/ferrite nanocomposite for potential applications in electrochemical supercapacitor applications. The possibility of magnetic field-assisted supercapacitor applications with electrolyte and electrode materials are discussed.

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

“…44 Indeed, advanced heterostructures obtained by the combination of ferrites with MXenes have been recognized as high-performance electrode materials for SC applications. 45,46 Herein, Fe 3 O 4 nanoparticles in situ grown onto Ti 3 C 2 T X nanosheets were fabricated by a facile hydrothermal method; and then, with rGO as the linker, the Fe 3 O 4 @Ti 3 C 2 T X heterostructure was subsequently assembled into a 3D porous interconnected hydrogel through a low-temperature GO-assisted self-convergence hydrothermal process. 47 In the asprepared porous hydrogel consisting of multiple-layer structures, uniformly embedded Fe 3 O 4 nanoparticles between the Ti 3 C 2 T X -rGO layers can serve as a spacer to effectively alleviate the agglomeration of Ti 3 C 2 T X and superposition of rGO nanosheets, thereby guaranteeing sufficient active sites and abundant ion transport pathways.…”