Back Cover Image

Abstract

In this article, Michael Naguib and co‐authors (DOI: https://doi.org/10.1002/inf2.12269) report on the successful synthesis and characterization of a new 2D carbonitride MXene, viz. Ti2C0.5N0.5, which is the only second carbonitride MXene. They explore the performance of this new MXene as electrode materials for sodium‐ion batteries (SIBs) and it outperformed its carbide counterpart (i.e., Ti2C) and all the other reports for multi‐layer MXenes in SIBs and it showed a stable electrochemical performance over 500 cycles.

Surface potential-determined performance of Ti3C2T2 (T = O, F, OH) and Zr3C2T2 (T = O, F, OH, S) MXenes as anode materials of sodium ion batteries

“…30 The introduction of nitrogen generally increases the sodium capacity on these Ti-containing MXenes. 31,32 A high specific capacity of 182 mA h g −1 was realized for Ti 2 C 0.5 N 0.5 T x , which is the highest capacity of all reported multilayer MXenes. 31 The introduction of sulphur also enhances the storage capacity.…”

“…31,32 A high specific capacity of 182 mA h g −1 was realized for Ti 2 C 0.5 N 0.5 T x , which is the highest capacity of all reported multilayer MXenes. 31 The introduction of sulphur also enhances the storage capacity. 33,34 In particular, a high capacity of 550 mA h g −1 at 0.1 A g −1 was reported in sulphur intercalated Ti 3 C 2 T x .…”

Surface potential-determined performance of Ti- and Zr-containing MXenes as anode materials of sodium ion batteries

“…27 The introduction of nitrogen generally increases the sodium capacity on these Ti-containing MXenes. 28,29 A high specific capacity of 182 mA h g -1 was realized for Ti2C0.5N0.5Tx, which is the highest capacity of all reported multilayer MXenes. 28 The introduction of sulphur also enhances the storage capacity.…”

“…28,29 A high specific capacity of 182 mA h g -1 was realized for Ti2C0.5N0.5Tx, which is the highest capacity of all reported multilayer MXenes. 28 The introduction of sulphur also enhances the storage capacity. 30,31 In particular, a high capacity of 550 mA h g -1 at 0.1 A g -1 was reported in sulphur intercalated Ti3C2Tx.…”

2D non-carbide MXenes: an emerging material class for energy storage and conversion

“…14 Furthermore, DFT calculations predicted that non-carbide MXenes have higher Young's modulus, active surface area, magnetic moments, and stability in the aqueous medium than carbide MXenes with the same stoichiometry. [15][16][17] Most of the reviews reported on MXenes are limited only to the general synthesis, properties, and applications of carbide MXenes. 3,4,6,[18][19][20][21] Although Johnson and his group recently published a review on the underlying energy storage mechanisms of nitride MXenes, there is no detailed review focusing on the synthesis and properties of non-carbide MXenes.…”