S in situ doped max-Ti3AlC2
| 【Numbering】BK2020041301 | 【CAS】196506-01-1 | ||
| 【Item No.】BK2020041301-01 | 【specification】 | ||
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product information:
Name: S in-situ doped max-Ti3AlC2
Product performance: Excellent Mxene precursor can be processed by HF or HCl+LiF to obtain MXene
Purity: 99%
Storage conditions: room temperature and dry
Application areas: energy storage, catalysis, analytical chemistry, mechanics, adsorption, biology, microelectronics, sensors, etc.
The size process can be customized and can be used to prepare Mxene material
Sodium-sulfur batteries use abundant elements and provide an attractive alternative to currently used batteries, but they need better sulfur-containing materials to compete with lithium-ion batteries for capacity and cycle capabilities. This paper proposes an in-situ sulfur doping strategy to functionalize MXene nanosheets by introducing heteroatomic sulfur from the MAX precursor into the MXene structure. Three-dimensional fold MXene nanostructures with high specific surface area were prepared by vacuum freeze-drying. In the room temperature sodium-sulfur battery, a specially made MXene (S-Ti3C2Tx) nanosheet is used as the main electrode material. The S−Ti3C2Tx group is highly polar with sodium polysulfide, which limits the diffusion of sodium polysulfide. The MXene/sulfur electrode can achieve a high-area load of sulfur up to 4.5 mg cm−2 and good electrochemical performance (the reversible capacity at 2C after 500 cycles is 577 mAh g−1).
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