Journal
JOURNAL OF ENERGY STORAGE
Volume 71, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.est.2023.107975
Keywords
MXene; 2D structures; MXene-based composites; Synthesis methods; Supercapacitor
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Recently, MXene has emerged as a promising two-dimensional transition-metal carbide and nitride material for energy storage applications. This review discusses the synthesis methods of MXene and its composites with various materials, as well as the analysis of their structural and morphological characteristics. The electrochemical properties of MXene, including capacitance values, energy density, power density, and cyclic retention, are compared. MXene shows great potential as an electrode material for supercapacitors due to its high electron-transfer rate and enhanced faradaic reaction rate. The current shortcomings and future opportunities for MXene and its composites are also briefly discussed to develop improved, size-optimized, flexible, and wearable supercapacitor applications.
Recently, a class of two-dimensional (2D) transition-metal carbide and nitride materials denoted as MXene have emerged with a formula of Mn+1XnTx (n = 1-3). It has properties like 2D lamellar structure, the larger density of the active sites, impressive conductivity, and intercalation charge storage mechanism turn out to be ideal alternative for energy storage applications. This review highlights different synthesis methods of MXene and MXene-based composites with metals, metal oxides, carbonaceous materials and conducting polymers. We have also illustrated the structural, morphological analysis and performed a comparative study of the electrochemical properties such as capacitance values, energy density, power density and cyclic retention, etc. Further, we have discussed MXene's application as an electrode material in several applications but specifically focussed on supercapacitors (SCs) due to its superior properties like higher electron-transfer rate, enhanced faradaic reaction rate, etc. The current shortcomings and future opportunities associated with the MXene and MXene-based composites were briefly explained for developing enhanced, size-optimized, flexible, and wearable supercapacitor applications.
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