Boron-nitrogen co-doped porous graphene and its preparation method and application
A porous graphene and co-doping technology, which is applied in the field of boron-nitrogen co-doped porous graphene and its preparation, can solve problems such as complex synthesis process
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[0026] The preparation method of the boron-nitrogen co-doped porous graphene of an embodiment, comprises the steps:
[0027] Step S110: annealing the organic carbon source, the organic boron source, and the template agent at 500° C. to 700° C. in an atmosphere of nitrogen-containing gas to obtain reactants.
[0028] Specifically, the step of annealing the organic carbon source, the organic boron source and the templating agent at 500° C. to 700° C. in a nitrogen-containing gas atmosphere includes: mixing the organic carbon source, the organic boron source, and the templating agent in a solvent evenly , to obtain a mixture; dry the mixture, and then anneal the mixture at 500° C. to 700° C. in an atmosphere of nitrogen-containing gas.
[0029] Specifically, the method of uniformly mixing the organic carbon source, the organic boron source and the templating agent in a solvent is grinding or ball milling. Wherein, the solvent is water or alcohol. The alcohol is at least one sel...
Embodiment 1
[0044] The preparation process of the boron-nitrogen co-doped porous graphene of the present embodiment is as follows:
[0045] (1) According to Table 1, the organic carbon source, organic boron source and template were ground in a solvent for 0.5 hour to mix uniformly to obtain a mixture; the mixture was dried at 80° C. for 6 hours, and then the mixture was placed in an ammonia atmosphere Annealing at 600°C for 2 hours. Wherein, in table 1, M:N represents the ratio of the sum of the quality of organic carbon source and organic boron source and the quality of templating agent
[0046] (2) The reactant was washed with 3mol / L hydrochloric acid at 80°C to remove the metal elements in the reactant, and then vacuum-dried at 80°C for 12 hours to obtain a fluffy black powder, which was boron-nitrogen co-doped porous Graphene.
[0047] Table 1
[0048]
[0049]
Embodiment 2
[0051] The preparation process of the boron-nitrogen co-doped porous graphene of the present embodiment is as follows:
[0052] (1) According to Table 1, the organic carbon source, the organic boron source and the templating agent were ball milled in water for 0.5 hour to mix uniformly to obtain a mixture; the mixture was dried at 80° C. for 4 hours, and then the mixture was dried in an atmosphere of nitrogen-containing gas Annealed at 500°C for 3 hours.
[0053] (2) The reactant was washed with water at 80°C to remove metal elements in the reactant, and then vacuum-dried at 80°C for 12 hours to obtain a fluffy black powder, which was boron-nitrogen co-doped porous graphene.
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