Preparation method of novel three-dimensional composite aerogel electrode material
A three-dimensional composite, electrode material technology, applied in hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, chemical instruments and methods, etc., to achieve the effect of improving specific capacity, simple preparation process, and increasing area
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Embodiment 1
[0029] (1) Delamination Ti 3 C 2 Preparation of MXene colloidal solution: with Ti 3 AlC 2 The MAX phase is used as a raw material, and Ti is synthesized by selective etching of the Al layer 3 C 2 MXene. Add 1g of lithium fluoride to a 9M 20mL hydrochloric acid solution and stir until the salt is completely dissolved. Then 1g of aluminum carbide titanide powder was slowly added to the above mixed solution, avoiding overheating, and stirred at 35 degrees Celsius for 24 hours. The resulting product was washed with deionized water and centrifuged (3500 rpm) until the pH of the supernatant was close to neutral. The finished product was then dispersed in 150 mL of deionized water, and sonicated with nitrogen for 1 hour. After centrifugation at 2000 rpm for 1 hour, the dark green supernatant was collected to obtain a delamination layered MXene suspension, filled with nitrogen, and stored in the refrigerator.
[0030] (2) Preparation of MXene / NiCo-LDH composite material: 0.015mol of ni...
Embodiment 2
[0034] (1) Delamination Ti 3 C 2 Preparation of MXene colloidal solution: with Ti 3 AlC 2 The MAX phase is used as a raw material, and Ti is synthesized by selective etching of the Al layer 3 C 2 MXene. Add 1g of lithium fluoride to a 9M 20mL hydrochloric acid solution and stir until the salt is completely dissolved. Then 1g of aluminum carbide titanide powder was slowly added to the above mixed solution, avoiding overheating, and stirred at 35 degrees Celsius for 24 hours. The resulting product was washed with deionized water and centrifuged (3500 rpm) until the pH of the supernatant was close to neutral. The finished product was then dispersed in 150 mL of deionized water, and sonicated with nitrogen for 1 hour. After centrifugation at 2000 rpm for 1 hour, the dark green supernatant was collected to obtain a delamination layered MXene suspension, filled with nitrogen, and stored in the refrigerator.
[0035] (2) Preparation of MXene / NiCo-LDH composite material: Dissolve 0.03m...
Embodiment 3
[0039] (1) Delamination Ti 3 C 2 Preparation of MXene colloidal solution: Using Ti3AlC2 MAX phase as raw material, through selective etching of Al layer, Ti was synthesized 3 C 2 MXene. Add 1g of lithium fluoride to a 9M 20mL hydrochloric acid solution and stir until the salt is completely dissolved. Then 1g of aluminum carbide titanide powder was slowly added to the above mixed solution, avoiding overheating, and stirred at 35 degrees Celsius for 24 hours. The resulting product was washed with deionized water and centrifuged (3500 rpm) until the pH of the supernatant was close to neutral. The finished product was then dispersed in 150 mL of deionized water, and sonicated with nitrogen for 1 hour. After centrifugation at 2000 rpm for 1 hour, the dark green supernatant was collected to obtain a delamination layered MXene suspension, filled with nitrogen, and stored in the refrigerator.
[0040] (2) Preparation of MXene / NiCo-LDH composite material: Dissolve 0.0225mol of nickel ni...
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Abstract
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