A kind of activated carbon material and preparation method thereof
A technology of activated carbon and resin materials, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of unfavorable electrolyte ion transmission and energy density improvement, unsuitable supercapacitor electrode materials, disordered and random distribution, etc. , to achieve low internal resistance, high capacity, and reduce production costs
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Embodiment 1
[0079] This embodiment provides a method of preparing a activated carbon material, the method comprising the steps of:
[0080] (1) Put the coconut shell at a helium atmosphere of 500 ° C 0.5 h, and the medium value of the pulverized to the pulverized material is 6 μm and mixed with sodium hydroxide and potassium hydroxide according to the mass ratio of 1: 0.9: 0.9, resulting Mixed alkali;
[0081] (2) The mixed alkali obtained by step (1) is raised to a temperature of 1 ° C / min at a temperature of 1 ° C / min at a pre-activated 2 h, and the phenolic resin material diluted with ethanol is mixed according to the mass ratio 1: 0.5. Evaporation and removal of the diluent at 70 ° C to obtain a pre-inclination precursor;
[0082] (3) The pre-laundry precursor obtained by step (2) is cured at a nitrogen atmosphere at 140 ° C for 3 h, and then the in situ activation at 600 ° C at a temperature rise rate of 5 ° C / min to obtain an activator, and the activator is obtained. Wash to pH ≈ ...
Embodiment 2
[0085] This embodiment provides a method of preparing a activated carbon material, the method comprising the steps of:
[0086] (1) The apricot shell was carbonized at a nitrogen atmosphere of 450 ° C for 1 h, and the median particle diameter of the pulverized to the pulverized material was 16 μm and mixed with potassium hydroxide according to 1: 1.5 to obtain a mixed base material;
[0087] (2) The mixing alkali obtained by step (1) is raised to a nitrogen atmosphere to warm up to 250 ° C for 3 h at a temperature of 250 ° C, and then the phenolic resin material diluted with ethanol is mixed according to the mass ratio 1: 1. Evaporation of the diluent at 60 ° C to obtain a pre-enlay precursor;
[0088] (3) The pre-enhanced precursor obtained by step (2) is cured at a inert atmosphere at 160 ° C for 2 h, and then the in situ activation of 1 h is raised at 10 ° C / min to obtain an activator, and the activator is obtained. Wash to pH ≈8, then according to the activation material: hy...
Embodiment 3
[0091] This embodiment provides a method of preparing a activated carbon material, the method comprising the steps of:
[0092] (1) Caring the walnut shell is carbonized at a nitrogen atmosphere 450 ° C, and the median particle diameter of the pulverized to the pulverized material is 10 μm and mixed with sodium hydroxide by mass than 1: 2 to obtain a mixed base material;
[0093] (2) The mixed base material obtained by step (1) is raised to a nitrogen atmosphere to warm up to 300 ° C for 1.5 h at a temperature of 300 ° C, and then the phenolic resin material diluted with ethanol is 1: 1.2 according to the mass ratio 1: 1.2 Mix, evaporate at 60 ° C to remove the diluent to obtain a pre-enlay precursor;
[0094] (3) The pre-laundry precursor obtained by step (2) is cured at a nitrogen atmosphere at 150 ° C for 3 h, and then the temperature of the temperature of 5 ° C / min is warmed to 700 ° C for ingentric activation 2.5 h to obtain the activator, activation Wash to pH ≈ 8, then ac...
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Abstract
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