Alginate-based porous carbon as well as preparation method and application thereof
An alginate and porous carbon technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve problems such as low efficiency, uneven product structure distribution, incomplete reaction, etc., and achieve rich resources and pore capacitance characteristics. Excellent, easy-to-use results
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[0060] Example 1:
[0061] This embodiment relates to a method for preparing a calcium-modified soluble alginate-based porous carbon precursor, which includes the following steps:
[0062] Step 1: Dissolve 50 g of sodium alginate in 3000 ml of deionized water, and stir thoroughly with an electric mixer to obtain an aqueous solution of sodium alginate.
[0063] Step 2: Dissolve 36 g of calcium lactate in 1000 ml of deionized water and manually stir to obtain an aqueous solution of calcium lactate.
[0064] Step 3: Add the solution obtained in Step 2 to the solution in Step 1 slowly under the condition of electric stirring of the solution obtained in Step 1 at a rate of 2000r / min in a constant temperature water bath of 50°C, keep electric stirring and heating for 6 hours;
[0065] In step four, the product obtained in step three is fully dried and crushed, and then sieved with an 80-mesh sieve to obtain a calcium-modified soluble alginate-based porous carbon precursor for supercapacitors....
Example Embodiment
[0066] Example 2:
[0067] This embodiment relates to a method for preparing a calcium-modified soluble alginate-based porous carbon precursor, which includes the following steps:
[0068] Step 1: Dissolve 50 g of sodium alginate in 3000 ml of deionized water, and stir thoroughly with an electric mixer to obtain an aqueous solution of sodium alginate.
[0069] Step 2: Dissolve 18 g of calcium lactate in 1000 ml of deionized water and manually stir to obtain an aqueous solution of calcium lactate.
[0070] Step 3: Add the solution obtained in Step 2 to the solution in Step 1 slowly under the condition of electric stirring of the solution obtained in Step 1 at a rate of 2000r / min in a constant temperature water bath of 50°C, and keep electric stirring and heating for 6 hours;
[0071] In step four, the product obtained in step three is fully dried and crushed, and then sieved with an 80-mesh sieve to obtain a calcium-modified soluble alginate-based porous carbon precursor for supercapacit...
Example Embodiment
[0072] Example 3:
[0073] This embodiment relates to a method for preparing a calcium-modified soluble alginate-based porous carbon precursor, which includes the following steps:
[0074] Step 1: Dissolve 50 g of sodium alginate in 3000 ml of deionized water, and stir thoroughly with an electric mixer to obtain an aqueous solution of sodium alginate.
[0075] Step 2: Dissolve 6 g of calcium lactate in 1000 ml of deionized water and manually stir to obtain an aqueous solution of calcium lactate.
[0076] Step 3: Add the solution obtained in Step 2 to the solution in Step 1 slowly under the condition of electric stirring of the solution obtained in Step 1 at a rate of 2000r / min in a constant temperature water bath of 50°C, keep electric stirring and heating for 6 hours;
[0077] In step four, the product obtained in step three is fully dried and crushed, and then sieved with an 80-mesh sieve to obtain a calcium-modified soluble alginate-based porous carbon precursor for supercapacitors. ...
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