A kind of preparation method of ordered mesoporous carbon material
A mesoporous carbon and surfactant technology, applied in the field of mesoporous materials, can solve the problems of long time-consuming and inability to realize large-scale production, and achieve the effects of high utilization rate, simple equipment requirements, and wide source of raw materials
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Embodiment 1
[0029] a) Add 1.0 g of phenol into 25 mL of 0.1 mol / L NaOH aqueous solution, heat to dissolve at 70°C, add 3.5 g of 37-40% formaldehyde aqueous solution, heat and stir at 70°C for 30 minutes;
[0030] b) Dissolve 2.2 g of F127 in 25 mL of water, mix well with the solution in step a) under stirring, and continue to react at 70°C for 8 hours;
[0031] c) Slowly add 36-38% concentrated hydrochloric acid to adjust the pH to 0.9, and the color changes from deep red to brownish yellow or bright yellow;
[0032] d) Add saturated sodium chloride aqueous solution, gradually appear yellow precipitate, stop adding when there is no more precipitate;
[0033] e) Centrifuge and separate the yellow precipitate at a rate of 8000 rpm;
[0034] f) The yellow sinking band is heated in air at 100°C for 24 hours, then heat-treated at 900°C in nitrogen or argon for 3 hours, the heating rate is 1°C / min below 600°C, and 3°C / min above 600°C;
[0035] g) The obtained ordered mesoporous carbon materia...
Embodiment 2
[0039] a) Add 1.0 g of phenol into 25 mL of 0.1 mol / L NaOH aqueous solution, heat to dissolve at 70°C, add 3.5 g of 37-40% formaldehyde aqueous solution, heat and stir at 70°C for 30 minutes;
[0040] b) Dissolve 2.2 g of F127 in 25 mL of water, mix well with the solution in step a) under stirring, and continue to react at 70°C for 8 hours;
[0041] c) Slowly add 36-38% concentrated hydrochloric acid to adjust the pH to 0.9, and the color changes from deep red to brownish yellow or bright yellow;
[0042] d) Add saturated ammonium sulfate aqueous solution, gradually appear yellow precipitate, stop adding when there is no more precipitate;
[0043] e) Centrifuge and separate the yellow precipitate at a rate of 8000 rpm;
[0044] f) The yellow sinking band is heated in air at 100°C for 24 hours, then heat-treated at 900°C in nitrogen or argon for 3 hours, the heating rate is 1°C / min below 600°C, and 3°C / min above 600°C;
[0045] g) The obtained ordered mesoporous carbon materi...
Embodiment 3
[0047]a) Add 1.0 g of phenol into 25 mL of 0.1 mol / L NaOH aqueous solution, heat to dissolve at 70°C, add 3.5 g of 37-40% formaldehyde aqueous solution, heat and stir at 70°C for 30 minutes;
[0048] b) Dissolve 2.2 g of F127 in 25 mL of water, mix well with the solution in step a) under stirring, and continue to react at 70°C for 8 hours;
[0049] c) Slowly add 36-38% concentrated hydrochloric acid to adjust the pH to 0.9, and the color changes from deep red to brownish yellow or bright yellow;
[0050] d) Add saturated sodium nitrate aqueous solution, gradually appear yellow precipitate, stop adding when there is no more precipitate;
[0051] e) Centrifuge and separate the yellow precipitate at a rate of 8000 rpm;
[0052] f) The yellow sinking band is heated in air at 100°C for 24 hours, then heat-treated at 900°C in nitrogen or argon for 3 hours, the heating rate is 1°C / min below 600°C, and 3°C / min above 600°C;
[0053] g) The obtained ordered mesoporous carbon material ...
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