Sb₂O₃/MXene(Ti₃C₂T_x) hybrid anode materials with enhanced performance for sodium-ion batteries

Abstract

Sb2O3/MXene(Ti3C2Tx) composites with Sb2O3nanoparticles confined in the 3D network of Ti3C2Txflakes were fabricated as anodes for Na-ion batteries.

MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors

“…[169] Among the Ti 2 C, Ti 3 C 2 , Ti 4 C 3 frameworks, the Ti 2 C framework has the best Li + ion storage capacity, and the Cu 2 O/Ti 2 CT x composite from an in situ growth method (hydrothermal method) does not show ideal electrochemical performance (145 mA h g −1 at 250 mA g −1 after 1000 cycles). [168] Copyright 2017, Royal Society of Chemistry. [164] Tiny SnO 2 nanoparticles preserve the opened stable framework of Ti 3 C 2 T x layers.…”

“…[262] In addition to designing different structures of MXene to improve the electrochemical performance, it is also common to combine with other materials to further strengthen performance. [168,174] Our group determined that MXene-transition metal oxide composite electrodes show excellent electrochemical performance in SIBs. In Figure 8f, CNTs not only stacked on the surface of MXene but also connected the pore structure to provide a multidimensional ion diffusion system during the charge/discharge process.…”

“…In Figure 8f, CNTs not only stacked on the surface of MXene but also connected the pore structure to provide a multidimensional ion diffusion system during the charge/discharge process. [168] Also, Sn-based active materials show remarkable electrochemical properties. [126] CNTs can not only provide outstanding conductivity for MXene/CNT composite, but can also be inserted into MXene thin layers to prevent restacking of the MXene, resulting in improved electrochemical performance of the resulting MXene/ CNT composites.…”

“…[126] CNTs can not only provide outstanding conductivity for MXene/CNT composite, but can also be inserted into MXene thin layers to prevent restacking of the MXene, resulting in improved electrochemical performance of the resulting MXene/ CNT composites. The reaction equations for SnO 2 , SnS, and Sn with Na + ions are as follows [168,259,260,265,266] SnO Na NaSnO [168,174] Our group determined that MXene-transition metal oxide composite electrodes show excellent electrochemical performance in SIBs.…”

“…[267] In general, in MXene-based sodium ion batteries, Ti 3 C 2 reacts with sodium ions to form Ti 3 C 2 Na x , which exhibits high reversible capacity. [126,168,195] MXene-based composites for sodiumion batteries are shown in Table 3. CNTs also increases the electrical conductivity of the MXene-based composite material.…”