A kind of zinc-cobalt double metal oxide sandwich structure flexible film electrode and preparation method thereof
A bimetallic oxide and flexible film technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of low energy density, narrow applicable voltage window, and poor cycle stability of supercapacitors, and achieve good electrolyte Good absorption capacity, large voltage range, and good stability
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Embodiment 1
[0038] S1. The 7G mass fraction of 1 wt% cellulose nanofil solution and 0.07 g of multi-wall carbon nanotubes were dispersed in 39.58 ml of deionized water, and the ultrasonic dispersion was dispersed for 30min (power 600W), magnetic force for 30min (700 r / min), obtained Uniform 0.3 wt% cellulose nanofilament - multi-wall carbon nanotube dispersion;
[0039]S2. Take 0.328 g of 2-methylimidazole in 25 ml of methanol, it is recorded as solution A, magnetic force is stirred for 10 min (600 r / min); 0.323 g of hexahydrate nitrate and 0.06 g of hexahydrate zinc is dissolved in 25 ml methanol, remember For solution B, magnetic force was stirred for 10 min (600 r / min), mixed with A, B, and was stirred for 10 min (600 r / min), at room temperature for 24 h, centrifugation (6500 r / min) to obtain purple precipitation, water water Ethanol was washed three times, vacuum dried at 80 ° C to give zinc-cobalt bimetal organic skeleton complexes. The zinc-cobalt bimetal organic skeleton comp...
Embodiment 2
[0047] S1. A 13 g mass fraction of 1 wt% cellulose nanofil solution and 0.13 g of multi-wall carbon nanotubes were dispersed in 38.87 ml of deionized water, and the ultrasonic dispersion was dispersed by 30 min (power 600W), and the magnetic force was stirred for 30min (700 r / min), obtained Uniform 0.5 wt% cellulose nanofilament - multi-wall carbon nanotube dispersion;
[0048] S2. Take 0.328 g of 2-methylimidazole in 25 ml of methanol, it is recorded as solution A, magnetic force is stirred for 10 min (600 r / min); 0.323 g of hexahydrate nitrate and 0.06 g of hexahydrate zinc is dissolved in 25 ml methanol, remember For solution B, magnetic force was stirred for 10 min (600 r / min), mixed with A, B, and was stirred for 10 min (600 r / min), and 24 h was placed at room temperature. Centrifugation (6500r / min) was 8 min to give purple precipitate, washed three times with anhydrous ethanol, and vacuum dried at 80 ° C to give zinc-cobalt bimetal organic skeleton complex. The zin...
Embodiment 3
[0056] S1. The 7G mass fraction of 1 wt% cellulose nanofil solution and 0.07 g of multi-wall carbon nanotubes were dispersed in 39.58 ml of deionized water, and the ultrasonic dispersion was dispersed for 30min (power 600W), magnetic force for 30min (700 r / min), obtained Uniform 0.3 wt% cellulose nanofilament - multi-wall carbon nanotube dispersion;
[0057] S2. Take 0.328 g of 2-methylimidazole in 25 ml of methanol, it is recorded as solution A, magnetic force is stirred for 10 min (600 r / min); 0.323 g of hexahydrate nitrate and 0.06 g of hexahydrate zinc is dissolved in 25 ml methanol, remember For solution B, magnetic force was stirred for 10 min (600 r / min), mixed with A, B, and was stirred for 10 min (600 r / min), and 24 h was placed at room temperature. Centrifugation (6500r / min) was 8 min to give purple precipitate, washed three times with anhydrous ethanol, and vacuum dried at 80 ° C to give zinc-cobalt bimetal organic skeleton complex. The zinc-cobalt bimetal org...
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