S In Situ Doped with Max-Ti3AlC2

Details

Product Information:

Name: S In-situ doping max-Ti3AlC2

Product performance: Excellent Mxene precursor can be treated by HF or HCl+LiF to get MXene

Purity: 99%

Storage condition: Dry at room temperature

Applications: energy storage, catalysis, analytical chemistry, mechanics, adsorption, biology, microelectronics, sensors, etc

The sizing process can be customized for the preparation of Mxene materials

Sodium-sulfur batteries use an abundant supply of the element and offer an attractive alternative to those currently in use, but they need better sulfur-containing materials to compete with lithium-ion batteries for capacity and cycle capacity. This paper proposes an in situ sulfur doping strategy to functionalize MXene nanosheets by introducing heteratomic sulfur from MAX precursors into the MXene structure. Three-dimensional folded MXene nanostructures with high specific surface area were prepared by vacuum freeze-drying. MXene (S?? S??) was doped with specially crumpled sulfur in sodium-sulfur cells at room temperature. Ti3C2Tx nanosheets were used as the main electrode material. S? The Ti3C2Tx group is highly polar to sodium polysulfide, limiting the diffusion of sodium polysulfide. MXene/ sulfur electrodes can achieve a high area load of sulfur up to 4.5 mg cm. 2, as well as good electrochemical performance (reversible capacity of 577 mAh g at 2C after 500 cycles? 1).

Text and photo source: wechat public account MXene Frontier