Preparation method of bimetal (Ni, Co) Se2 heterostructure and application of bimetal (Ni, Co) Se2 heterostructure in super capacitor
A heterogeneous structure, bimetallic technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, hybrid capacitor collectors, etc., can solve the problems of poor conductivity, poor dispersion, and difficult morphology, etc., to achieve electrical Improved chemical properties, high rate performance, and low cost effects
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Embodiment 1
[0031] (1) Add 0.291 g Co(NO 3 ) 2 ·6H 2 O was dissolved in 40mL deionized water (DI), and then ultrasonically stirred for about 25 minutes to obtain solution A;
[0032] (2) Dissolve 1.30g of 2-methylimidazole (2-MI) in another 40mL of DI, and continue stirring to obtain a uniform mixture B;
[0033] (3) Quickly mix and stir solution A and solution B until uniform, then immediately add clean CF and let stand for 3.0 hours. Finally, remove CF, use DI and C 2 h 5 OH was washed alternately for 3.0 times, and then dried in an oven at 60°C to obtain product C;
[0034] (4) Add 0.01 g Ni (NO 3 ) 2 ·6H 2 O was ultrasonically dispersed in 20 ml of ethanol and stirred continuously to obtain solution D. Put object C in a 50 mL high-temperature reactor at 120°C for 2 hours, take out sample C, and use DI and C 2 h 5 OH was washed alternately for 3.0 times, and then placed in a 60°C oven; object E was obtained;
[0035] (5) Disperse 0.285g sodium hydroxide and 0.22g selenium po...
Embodiment 2
[0039] (1) Add 0.291 g Co(NO 3 ) 2 ·6H 2 O was dissolved in 40mL deionized water (DI), and then ultrasonically stirred for about 25 minutes to obtain solution A;
[0040] (2) Dissolve 1.30g of 2-methylimidazole (2-MI) in another 40mL of DI, and continue stirring to obtain a uniform mixture B;
[0041] (3) Quickly mix and stir solution A and solution B until uniform, then immediately add clean CF and let stand for 3.0 hours. Finally, remove CF, use DI and C 2 h 5 OH was washed alternately for 3.0 times, and then dried in an oven at 60°C to obtain product C;
[0042] (4) Add 0.02 g Ni (NO 3 ) 2 ·6H 2 O was ultrasonically dispersed in 20 ml of ethanol and stirred continuously to obtain solution D. Put object C in a 50 mL high-temperature reactor at 120°C for 2 hours, take out sample C, and use DI and C 2 h 5 OH was washed alternately for 3.0 times, and then placed in a 60°C oven; object E was obtained;
[0043] (5) Disperse 0.285g sodium hydroxide and 0.22g selenium po...
Embodiment 3
[0047] (1) Add 0.291 g Co(NO 3 ) 2 ·6H 2 O was dissolved in 40mL deionized water (DI), and then ultrasonically stirred for about 25 minutes to obtain solution A;
[0048] (2) Dissolve 1.30g of 2-methylimidazole (2-MI) in another 40mL of DI, and continue stirring to obtain a uniform mixture B;
[0049] (3) Quickly mix and stir solution A and solution B until uniform, then immediately add clean CF and let stand for 3.0 hours. Finally, remove CF, use DI and C 2 h 5 OH was washed alternately for 3.0 times, and then dried in an oven at 60°C to obtain product C;
[0050] (4) Add 0.03 g Ni (NO 3 ) 2 ·6H 2 O was ultrasonically dispersed in 20 ml of ethanol and stirred continuously to obtain solution D. Put object C in a 50 mL high-temperature reactor at 120°C for 2 hours, take out sample C, and use DI and C 2 h 5 OH was washed alternately for 3.0 times, and then placed in a 60°C oven; object E was obtained;
[0051] (5) Disperse 0.285g sodium hydroxide and 0.22g selenium po...
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