Preparation method of pyridine phenolic resin-based nitrogen-doped carbon electrode material
A technology of pyridine phenolic resin and nitrogen-doped carbon, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of reduced rate performance due to conductivity, reduced rapid charge and discharge ability, and reduced overall specific capacitance. Achieve pseudocapacitive specific capacity, good electrochemical performance, and high rate performance
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[0030] The preparation method of pyridine phenolic resin-based nitrogen-doped carbon electrode material is to prepare pyridine phenolic resin by hydrothermal method, and then perform heat treatment and activation process on pyridine phenolic resin to obtain Pyridine-phenolic resin-based nitrogen-doped carbon materials.
[0031] The specific preparation method is as follows:
[0032] A. Add 3-fluorophenol, hydroxypyridine monomer and hexamethylenetetramine into 80 mL distilled water in a certain proportion to completely dissolve to form a homogeneous solution, then add the homogeneous solution into a 100 mL reactor for hydrothermal reaction to obtain product 1, Product 1 was washed with distilled water to pH = 7, and dried under certain conditions to obtain a sample of pyridine phenolic resin nanospheres;
[0033] B. Put the pyridine phenolic resin nanosphere sample in step A into a tube furnace, and raise the temperature from room temperature to 500~800°C in a nitrogen atmosp...
Embodiment 1
[0038] A. Add 3-fluorophenol, hydroxypyridine monomer and hexamethylenetetramine into 80 mL distilled water in a mass ratio of 1:0.85:0.85 to completely dissolve to form a uniform solution, wherein the concentration of hydroxypyridine monomer in the uniform solution is 0.011 mol / L, and then added to a 100 mL reactor, at 180 o C under hydrothermal reaction for 24 hours, product 1 was washed with distilled water to pH=7, at 60 o C obtains the pyridine novolac resin nanosphere sample after drying for 24 hours;
[0039] B, put the pyridine phenolic resin nanosphere sample described in step A into the tube furnace, and heat up from room temperature to 800 °C in a nitrogen atmosphere. o C, heat treatment for 4 hours, and collect product 2 after naturally cooling to room temperature;
[0040] C. Weigh the product two and potassium hydroxide described in step B according to the mass ratio of 1:6, grind and mix thoroughly, put them into a tube furnace, and heat up from room temperatu...
Embodiment 2
[0046] A. Add 3-fluorophenol, hydroxypyridine monomer and hexamethylenetetramine at a mass ratio of 1:0.85:0.85 into 80 mL of distilled water to completely dissolve to form a uniform solution, wherein the concentration of hydroxypyridine monomer in the solution is 0.011 mol / L, then add to 100 mL reactor, at 180 o C under hydrothermal reaction for 24 hours, product 1 was washed with distilled water to pH=7, at 60 o C obtains the pyridine novolac resin nanosphere sample after drying for 24 hours;
[0047] B, put the pyridine phenolic resin nanosphere sample described in the step A into the tube furnace, and raise the temperature from room temperature to 500 °C in a nitrogen atmosphere. o C, heat treatment for 4 hours, and collect product 2 after naturally cooling to room temperature;
[0048] C. Weigh the product two and potassium hydroxide described in step B according to the mass ratio of 1:6, grind and mix thoroughly, put them into a tube furnace, and heat up from room tem...
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