Preparation method of polysulfide/iodine liquid flow battery electrode based on COS2-CoS n-n semiconductor junctions
A cos2-cosn-n, semiconductor technology, applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems of increased charge-discharge potential difference, side reactions of hydrogen evolution, and reduced current density, achieving high crystallinity, Low production cost and improved electrical conductivity
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[0039] Example 1:
[0040] One based on CoS 2 -CoS n-n semiconductor junction polysulfur / iodine flow battery electrode preparation method:
[0041] (1) Using one-step solvothermal method, 1mmol CoSO 4 ·7H 2 O, 10mmol urea and 25mmol sublimed sulfur were added to 70mL of mixed solvent of ethylene glycol and N,N-dimethylformamide. The volume ratio of ethylene glycol and N,N-dimethylformamide was 0.9. Stir at room temperature 1 hour;
[0042] (2) Transfer it to a 100mL autoclave and react at 180℃ for 12h;
[0043] (3) After the reaction, cool to room temperature, centrifuge the precipitate at 7000 rpm for 5 min, and wash the product twice with deionized water and once with absolute ethanol, and then dry the product under vacuum at 60°C for 6 hours, that is Get black CoS 2 / CoS powdered product. Synthesize CoS by a similar method 2 And CoS, adjust the volume ratio of ethylene glycol and N,N-dimethylformamide to 0.5 and 2, respectively, and stir at room temperature for 1 hour to obtain b...
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[0049] Example 2:
[0050] According to the method of Example 1, the difference is that the metal cobalt salt used is cobalt nitrate.
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[0051] Example 3:
[0052] According to the method of Example 1, the difference is that the metal cobalt salt used is cobalt oxide.
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