Preparation method of high purity porous carbon
A porous carbon, high-purity technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of complex porous carbon process, environmental pollution, equipment corrosion, etc., to reduce adverse effects, reduce production costs, The effect of prolonging the life of the equipment
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[0025] Example 1
[0026] Weigh 100 g of water-soluble phenolic resin, pour it into a three-necked flask, and place it in a 60°C water bath, add 4.5 g of hexamethylenetetramine and 135 g of sodium carbonate, and stir mechanically for 30 minutes. Then raise the temperature of the water bath to 85°C, continue heating and stirring for 1 hour. The uniformly stirred mixture was transferred to a beaker and placed in an open oven at 150°C for 12 hours. Then it is crushed to 0.2-1mm and carbonized in a nitrogen atmosphere. The carbonization temperature rise rate is 8°C / min, the carbonization final temperature is 900°C, the final temperature is kept for 1 hour, and it is naturally cooled to room temperature. Take out the carbonized material, wash it repeatedly with deionized water at 100°C and filter until it is neutral. The obtained product was dried in a vacuum oven at 120°C for 6 hours, and the specific surface area of the obtained porous carbon was 1357m 2 / g, the total pore volum...
Example Embodiment
[0027] Example 2
[0028] Weigh 100 g of water-soluble phenolic resin, pour it into a three-necked flask, and place it in a 60°C water bath, add 4.5 g of hexamethylenetetramine and 135 g of potassium carbonate, and stir mechanically for 30 minutes. Then raise the temperature of the water bath to 85°C, continue heating and stirring for 1 hour. Transfer the well-stirred mixture to a beaker, and place it in an oven at 150°C for 12 hours. Then it is crushed to 0.2-1mm and carbonized in a tubular heating furnace. The heating rate of carbonization is 8°C / min, the final carbonization temperature is 900°C, the final temperature is kept for 1 hour, and it is naturally cooled to room temperature and protected by nitrogen throughout the process. Take out the carbonized material, wash it repeatedly with deionized water at 100°C and filter until it is neutral. The obtained product was dried in a vacuum oven at 120°C for 6 hours, and the specific surface area of the obtained porous carbon ...
Example Embodiment
[0029] Example 3
[0030] Weigh 100 g of water-soluble phenolic resin, pour it into a three-necked flask, and place it in a 60°C water bath, add 4.5 g of hexamethylenetetramine and 135 g of potassium acetate, and stir mechanically for 30 minutes. Then raise the temperature of the water bath to 85°C and continue heating and stirring for 1 hour. Transfer the evenly stirred mixture to a beaker and place it in an oven at 150°C for 12 hours. Then it is crushed to 0.2-1mm and carbonized in a tubular heating furnace. The heating rate of carbonization is 8°C / min, the final carbonization temperature is 900°C, the final temperature is kept for 1h, and it is naturally cooled to room temperature and protected by nitrogen throughout the process. Take out the carbonized material, wash it repeatedly with deionized water at 100°C and filter until it is neutral. The obtained product was dried in a vacuum oven at 120°C for 6 hours, and the specific surface area of the obtained porous carbon wa...
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