Method for preparing nitrogen-doped graphene material with hydrothermal process
A technology of nitrogen-doped graphene and hydrothermal method is applied in the field of preparation of nitrogen-doped graphene materials, which can solve the problems of complex equipment required for the reaction, difficult control of nitrogen content, harsh reaction conditions, etc., and achieves easy industrial production, The effect of low production cost and simple equipment
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specific Embodiment approach 1
[0012] Specific embodiment one: the method for preparing nitrogen-doped graphene material by hydrothermal method in this embodiment is completed by the following steps: one, add graphite oxide in the solvent, then add surfactant, then use ultrasonic method or heating Mix uniformly by stirring to obtain mixture A, wherein the solvent is one or a mixture of several of water, methanol, ethanol, ethylene glycol, N,N-dimethylformamide, and the graphite oxide The mass ratio with solvent is 1:100~2000, and the mass ratio of described surfactant and graphite oxide is 0.01~50:1; Two, then add nitrogen-containing compound in mixture A, wherein nitrogen-containing compound and graphite oxide The mass ratio is 10 to 500:1, and then the mixture is uniformly mixed by ultrasonic method or heating and stirring method to obtain the mixture B; 3. The mixture B is subjected to hydrothermal reaction, the hydrothermal reaction temperature is 100~190°C, and the hydrothermal reaction time is 4-48 ho...
specific Embodiment approach 2
[0015] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the surfactant described in step one is cationic surfactant, anionic surfactant, nonionic surfactant and amphoteric surfactant A sort of. Other steps and parameters are the same as in the first embodiment.
specific Embodiment approach 3
[0016] Specific embodiment three: this embodiment is different from specific embodiment two in that: the cationic surfactant is cetyl trimethyl ammonium bromide, cetyl dimethyl benzyl ammonium bromide, Cetyl alcohol polyoxyethylene ether group dimethyl octyl ammonium chloride, lauryl alcohol polyoxyethylene ether group dimethyl methyl ammonium chloride, octylphenol polyoxyethylene ether group dimethyl decyl bromide ammonium chloride, octylphenol polyoxyethylene ether dimethyl decyl ammonium chloride or cetyl alcohol polyoxyethylene ether dimethyl octyl ammonium chloride. Other steps and parameters are the same as in the second embodiment.
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