Boron doped graphene and preparation method thereof
A graphene and boron doping technology, which is applied in the field of boron doped graphene and its preparation, can solve the problems of difficult industrial preparation, high equipment and operation requirements, and achieve large-scale industrial production, low equipment requirements, and excellent electrical conductivity performance effect
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Embodiment 1
[0021] Graphite with a purity of 99.5% is used as a raw material, and 1g of graphite is added to a mixed solution consisting of 92ml of concentrated sulfuric acid (98% by mass fraction) and 24ml of concentrated nitric acid (65% by mass fraction), and the mixed solution is placed in ice water. Stir in the mixed bath environment for 20 minutes, then add 3g potassium permanganate to the mixed solution, stir for 1 hour to oxidize the graphite initially, then heat the mixed solution to 85°C, and keep it warm for 30 minutes to further oxidize the graphite, then add 92ml Deionized water, continue to keep at a temperature of 85°C for 30 minutes, finally add 8ml hydrogen peroxide (30% mass fraction) to the mixed solution to remove potassium permanganate, filter with suction and wash with 100ml dilute hydrochloric acid and 150ml deionized water The resulting solid product was washed, washed three times in total, and then the solid product was placed in a vacuum oven at 60°C for 12 hours ...
Embodiment 2
[0026] Graphite with a purity of 99.5% is used as a raw material, and 1g of graphite is weighed and added to a mixed solution consisting of 92ml of concentrated sulfuric acid (98% by mass fraction) and 20ml of concentrated nitric acid (65% by mass fraction), and the mixed solution is placed in ice water. Stir in the mixed bath environment for 20 minutes, then add 4g potassium permanganate to the mixed solution, stir for 1 hour to oxidize the graphite initially, then heat the mixed solution to 95°C, and keep it warm for 30 minutes to further oxidize the graphite, then add 92ml Deionized water, continue to keep at a temperature of 95°C for 30 minutes, finally add 8ml hydrogen peroxide (30% mass fraction) to the mixed solution to remove potassium permanganate, filter with suction and wash with 100ml dilute hydrochloric acid and 150ml deionized water The resulting solid product was washed for three times, and then the solid product was placed in a vacuum oven at 60°C for 12 hours t...
Embodiment 3
[0028] Graphite with a purity of 99.5% is used as a raw material, and 2g of graphite is weighed and added to a mixed solution consisting of 160ml of concentrated sulfuric acid (98% by mass fraction) and 60ml of concentrated nitric acid (65% by mass fraction), and the mixed solution is placed in ice water Stir in a mixed bath environment for 20 minutes, then add 2g of potassium permanganate to the mixed solution, stir for 1 hour to oxidize the graphite initially, then heat the mixed solution to 80°C, and keep it warm for 30 minutes to further oxidize the graphite, then add 92ml Deionized water, continue to keep at a temperature of 80°C for 30 minutes, finally add 10ml hydrogen peroxide (30% by mass fraction) to the mixed solution to remove potassium permanganate, filter with suction and wash with 100ml dilute hydrochloric acid and 150ml deionized water The obtained solid product was washed, washed three times in total, and then the solid product was placed in a vacuum oven at 60...
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