CuS2/Na5NiO4 efficient oxygen evolution catalyst and preparation method thereof
A catalyst and oxygen evolution technology, which is applied in the field of electrocatalysis, can solve the problems of hindering OER catalytic activity and low electron transfer ability, and achieve the effect of being conducive to electron transfer, good OER catalytic performance, and rich source of raw materials
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Embodiment 1
[0034] Embodiment 1 (best embodiment)
[0035](1) Synthesis of nano-copper sulfide aqueous solution: Weigh 0.1705g of copper chloride dihydrate (1mmol) and 0.2g of trisodium citrate dihydrate (0.68mmol) into a 250mL round bottom flask, and measure 180mL of deionized Water was added therein, and magnetically stirred at room temperature to dissolve into a uniform light blue solution; weigh 0.6005g of sodium sulfide nonahydrate, add deionized water to constant volume in a 50mL volumetric flask (the concentration of sodium sulfide nonahydrate is 50 mmol / L) , and then quickly add 20mL of sodium sulfide nonahydrate aqueous solution to the above solution, stir magnetically at room temperature for 5min, the reaction mixture turns dark brown; transfer the mixture to a constant temperature water bath, heat the water bath to 90°C, continue Heating was continued for 15 minutes to obtain a dark green nano-copper sulfide solution, cooled in an ice-water bath, and finally the solution was pl...
Embodiment 2
[0039] Embodiment 2 (preferably, different concentrated ammonia water additions)
[0040] (1) Synthesis of nano-copper sulfide aqueous solution: Weigh 0.1705g of copper chloride dihydrate (1mmol) and 0.2g of trisodium citrate dihydrate (0.68mmol) into a 250mL round bottom flask, and measure 180mL of deionized Water was added therein, and magnetically stirred at room temperature to dissolve into a uniform light blue solution; weigh 0.6005g of sodium sulfide nonahydrate, add deionized water to constant volume in a 50mL volumetric flask (the concentration of sodium sulfide nonahydrate is 50 mmol / L) , and then quickly add 20mL of sodium sulfide nonahydrate aqueous solution to the above solution, stir magnetically at room temperature for 5min, the reaction mixture turns dark brown; transfer the mixture to a constant temperature water bath, heat the water bath to 90°C, continue Heating was continued for 15 minutes to obtain a dark green nano-copper sulfide solution, cooled in an ice...
Embodiment 3
[0044] Embodiment 3 (preferably, different concentrated ammonia water additions)
[0045] (1) Synthesis of nano-copper sulfide aqueous solution: Weigh 0.1705g of copper chloride dihydrate (1mmol) and 0.2g of trisodium citrate dihydrate (0.68mmol) into a 250mL round bottom flask, and measure 180mL of deionized Water was added therein, and magnetically stirred at room temperature to dissolve into a uniform light blue solution; weigh 0.6005g of sodium sulfide nonahydrate, add deionized water to constant volume in a 50mL volumetric flask (the concentration of sodium sulfide nonahydrate is 50 mmol / L) , and then quickly add 20mL of sodium sulfide nonahydrate aqueous solution to the above solution, stir magnetically at room temperature for 5min, the reaction mixture turns dark brown; transfer the mixture to a constant temperature water bath, heat the water bath to 90°C, continue Heating was continued for 15 minutes to obtain a dark green nano-copper sulfide solution, cooled in an ice...
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Abstract
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