A preparation method of zif8/zinc oxide composite material for functional interlayer of lithium-sulfur battery
A composite material, lithium-sulfur battery technology, applied in the field of material chemistry, can solve the problems of low utilization rate of positive electrode materials, poor conductivity of intermediate products, affecting applications, etc., and achieve the effect of improving electrochemical stability.
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Embodiment 1
[0022] (1) Preparation of three-dimensional ordered polystyrene ball array material:
[0023] First, slowly add 80mL of styrene monomer and 8mL of acrylic acid into 400mL of distilled water. After stirring and dispersing, use a water bath to heat the temperature of the reaction system to 60°C, and then pass nitrogen gas for 30min to remove the oxygen in the solution, and then add 15mL, 40mmol / L The aqueous solution of potassium persulfate was continuously reacted for 12 hours under the stirring condition of 300r / min. The resulting emulsion was separated in a centrifuge, washed with ethanol, and then dried naturally to obtain a polystyrene ball array material.
[0024] (2) Preparation of ZnO array material with inverse opal structure:
[0025] Prepare 100 mL of methanol solution of 0.5 mol / L zinc nitrate hexahydrate, stir well, add 2 g of hexamethyleneimine, ultrasonicate for 40 min, add 2 g of the polystyrene ball array material prepared in step (1), and let it stand for 2 h ...
Embodiment 2
[0030] (1) Preparation of three-dimensional ordered polystyrene ball array materials:
[0031] First, slowly add 50mL of styrene monomer and 5mL of acrylic acid into 300mL of distilled water. After stirring and dispersing, the temperature of the reaction system is raised to 50°C by heating in a water bath, and the oxygen in the solution is removed by passing nitrogen gas for 20 minutes. Potassium sulfate aqueous solution was continuously reacted for 10 h under the stirring condition of 200 r / min, and the obtained emulsion was separated in a centrifuge, washed with ethanol, and then dried naturally to obtain a polystyrene ball array material.
[0032] (2) Preparation of ZnO array material with inverse opal structure:
[0033] Prepare 100 mL of methanol solution of 0.1 mol / L zinc nitrate hexahydrate and stir evenly, add 1 g of hexamethyleneimine to it, sonicate for 30 min, then add 1 g of the polystyrene ball array prepared in step 1 to it, let stand 10h, and then dried by suct...
Embodiment 3
[0038] (1) Preparation of three-dimensional ordered polystyrene ball array material:
[0039] First, slowly add 100mL of styrene monomer and 10mL of acrylic acid into 500mL of distilled water. After stirring and dispersing, use a water bath to heat the temperature of the reaction system to 70°C, and then pass nitrogen gas for 40 minutes to remove oxygen in the solution, and then add 25mL, 50mmol / L The potassium persulfate aqueous solution was continuously reacted for 24 hours under the stirring condition of 300 r / min, and the obtained emulsion was separated in a centrifuge, washed with ethanol, and then dried naturally to obtain a polystyrene ball array material.
[0040] (2) Preparation of ZnO array material with inverse opal structure:
[0041] Prepare 100 mL of methanol solution of 1 mol / L zinc nitrate hexahydrate and stir evenly, add 3 g of hexamethyleneimine, ultrasonicate for 30-60 min, add 3 g of the polystyrene ball array material prepared in step (1) to it, statically...
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