A kind of preparation method of polyacrylic acid grafted lignin porous carbon
A technology of polyacrylic acid and lignin, which is applied in chemical instruments and methods, non-metallic elements, carbon compounds, etc., can solve the problems of high cost and achieve the effects of low price, simple production process and high specific capacity
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Embodiment 1
[0016] Take 5mL of acrylic acid and add 30mL of 1.5mol / L sodium hydroxide solution, then add 0.2g of ammonium persulfate and 0.15g of N,N'-methylenebisacrylamide and heat in a water bath at 60°C for 5 minutes to obtain acrylic acid polymer A ; Take 0.1g lignin and dissolve it in 2mL of 1.5mol / L sodium hydroxide solution, then mix it with Polymer A and place it in a shaker at 60°C for 60 minutes of polymerization reaction. After the reaction, take out the product and cool it to dry , to obtain polyacrylic acid grafted lignin particles; take 1g of particles and evenly disperse them in the reaction boat, place the reaction boat in a tube furnace, and under the protection of nitrogen, raise the temperature of the furnace from room temperature at a rate of 2°C / min Heating to the activation temperature of 700°C, carbonizing for 120 minutes, and then cooling to room temperature to prepare a porous carbon material.
[0017] It was measured that the prepared polyacrylic acid grafted li...
Embodiment 2
[0019] Take 5mL of acrylic acid and add 30mL of 1.5mol / L sodium hydroxide solution, then add 0.2g of ammonium persulfate and 0.15g of N,N'-methylenebisacrylamide and heat in a water bath at 60°C for 5 minutes to obtain acrylic acid polymer A ; Take 0.25g lignin and dissolve it in 2mL of 1.5mol / L sodium hydroxide solution, then mix it with Polymer A and place it in a shaker at 60°C for 60 minutes of polymerization reaction. After the reaction, take out the product and cool it to dry , to obtain polyacrylic acid grafted lignin particles; take 1g of particles and evenly disperse them in the reaction boat, place the reaction boat in a tube furnace, and under the protection of nitrogen, raise the temperature of the furnace from room temperature at a rate of 2°C / min Heating to the activation temperature of 700°C, carbonizing for 120 minutes, and then cooling to room temperature to prepare a porous carbon material.
[0020] It was measured that the prepared polyacrylic acid grafted l...
Embodiment 3
[0022] Take 5mL of acrylic acid and add 30mL of 1.5mol / L sodium hydroxide solution, then add 0.2g of ammonium persulfate and 0.15g of N,N'-methylenebisacrylamide and heat in a water bath at 60°C for 5 minutes to obtain acrylic acid polymer A ; Take 0.5g lignin and dissolve it in 2mL of 1.5mol / L sodium hydroxide solution, then mix it with Polymer A and place it in a shaker at 60°C for 60 minutes of polymerization reaction. After the reaction, take out the product and cool it to dry , to obtain polyacrylic acid grafted lignin particles; take 1g of particles and evenly disperse them in the reaction boat, place the reaction boat in a tube furnace, and under the protection of nitrogen, raise the temperature of the furnace from room temperature at a rate of 2°C / min Heating to the activation temperature of 700°C, carbonizing for 120 minutes, and then cooling to room temperature to prepare a porous carbon material.
[0023] It was measured that the prepared polyacrylic acid grafted li...
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