Nafion film/Ti3C2Tx/sulfur composite material
A composite material, elemental sulfur technology, applied in electrical components, electrochemical generators, battery electrodes, etc., can solve the problems of slow migration speed, reduce the utilization rate of sulfur active materials, deteriorate the performance of lithium-sulfur batteries, etc. Reduce the effect of the shuttle effect
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Embodiment 1
[0017] (1) Put Ti 3 AlC 2 The ceramic powder was corroded in hydrofluoric acid with a mass concentration of 20% for 24 hours. After corrosion, the solution was added to deionized water for centrifugation, and then the precipitate was dried to obtain stacked layered Ti. 3 C 2 T x Powder;
[0018] (2) Add 0.5g Ti 3 C 2 T x Mix the powder with 10g of elemental sulfur evenly, place it in a sealed reaction kettle, heat the reaction to 155°C in a nitrogen atmosphere, keep the temperature for 12h, cool to room temperature after the reaction is completed, and obtain Ti 3 C 2 T x / sulfur composites;
[0019] (3) Ti will be obtained 3 C 2 T x The / sulfur composite material was added to 10 g of Nafion solution with a mass fraction of 5%, stirred for 1 hour, left to stand, filtered, and vacuum dried to obtain the Nafion film / Ti 3 C 2 T x / sulfur composites.
Embodiment 2
[0021] (1) Put Ti 3 AlC 2 The ceramic powder was corroded in hydrofluoric acid with a mass concentration of 50% for 4 hours. After corrosion, the solution was added to deionized water for centrifugation, and then the precipitate was dried to obtain stacked layered Ti. 3 C 2 T x Powder;
[0022] (2) Put 2g Ti 3 C 2 T x The powder was uniformly mixed with 10g of elemental sulfur, placed in a sealed reaction kettle, heated to 165°C in a nitrogen atmosphere, and kept at a constant temperature for 5h. After the reaction was completed, it was cooled to room temperature to obtain Ti 3 C 2 T x / sulfur composites;
[0023] (3) Ti will be obtained 3 C 2 T x The / sulfur composite material was added to 10 g of Nafion solution with a mass fraction of 10% and stirred for 10 hours, left to stand, filtered, and vacuum-dried to obtain the Nafion film / Ti 3 C 2 T x / sulfur composites.
Embodiment 3
[0025] (1) Put Ti 3 AlC 2 The ceramic powder was corroded in hydrofluoric acid with a mass concentration of 30% for 20 hours. After corrosion, the solution was added to deionized water for centrifugation, and then the precipitate was dried to obtain stacked layered Ti. 3 C 2 T x Powder;
[0026] (2) Add 1g Ti 3 C 2 T x Mix the powder with 10g of elemental sulfur evenly, place it in a sealed reaction kettle, heat the reaction to 160°C in a nitrogen atmosphere, keep the temperature for 10h, cool to room temperature after the reaction is completed, and obtain Ti 3 C 2 T x / sulfur composites;
[0027] (3) Ti will be obtained 3 C2 T x The / sulfur composite material was added to 40 g of Nafion solution with a mass fraction of 5%, stirred for 5 hours, left to stand, filtered, and vacuum-dried to obtain the Nafion film / Ti 3 C 2 T x / sulfur composites.
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