Vapor deposition method for silicon-doped graphene
A vapor deposition method and graphene technology, applied in the field of graphene, can solve problems such as unstable existence and changes in graphene properties, and achieve the effects of high efficiency and stability, simple process, and strong controllability of silicon doping rate
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Embodiment 1
[0033] A gas phase deposition method of silicon-doped graphene, said gas phase deposition method according to the following steps:
[0034] Step 1, add graphene powder into absolute ethanol, seal and ultrasonically react for 30 minutes, and obtain graphene suspension after cooling;
[0035] Step 2, adding polyethylene glycol to the graphene suspension, mechanically stirring until completely dissolved, to obtain a graphene dispersion alcohol solution;
[0036] Step 3, putting the graphene dispersed alcohol solution into a vacuum distillation reactor for 2 hours of vacuum distillation reaction to obtain a viscous liquid, and drying to obtain a fluffy graphene block;
[0037] Step 4, adding the graphene block into the reaction kettle, heating and standing for 20 minutes, then passing silane gas to react for 3-8 hours, and obtaining the graphene adsorption block after natural cooling;
[0038] Step 5, adding the graphene adsorption block into absolute ethanol for 30 minutes of ul...
Embodiment 2
[0049] A gas phase deposition method of silicon-doped graphene, said gas phase deposition method according to the following steps:
[0050] Step 1, adding graphene powder into absolute ethanol, sealing and ultrasonically reacting for 60 minutes, and obtaining graphene suspension after cooling;
[0051] Step 2, adding polyethylene glycol to the graphene suspension, mechanically stirring until completely dissolved, to obtain a graphene dispersion alcohol solution;
[0052] Step 3, putting the graphene dispersed alcohol solution into a vacuum distillation reactor for 5 hours of vacuum distillation reaction to obtain a viscous liquid, and drying to obtain a fluffy graphene block;
[0053] Step 4, adding the graphene block into the reaction kettle, heating and standing for 40 minutes, then passing silane gas to react for 3-8 hours, and obtaining the graphene adsorption block after natural cooling;
[0054] Step 5, adding the graphene adsorption block into absolute ethanol for 60 m...
Embodiment 3
[0065] A gas phase deposition method of silicon-doped graphene, said gas phase deposition method according to the following steps:
[0066] Step 1, adding graphene powder into absolute ethanol, sealing and ultrasonically reacting for 50 minutes, and obtaining graphene suspension after cooling;
[0067] Step 2, adding polyethylene glycol to the graphene suspension, mechanically stirring until completely dissolved, to obtain a graphene dispersion alcohol solution;
[0068] Step 3, putting the graphene dispersed alcohol solution into a vacuum distillation reactor for 4 hours of vacuum distillation reaction to obtain a viscous liquid, and drying to obtain a fluffy graphene block;
[0069] Step 4, adding the graphene block into the reaction kettle, heating and standing for 30 minutes, then passing silane gas to react for 3-8 hours, and obtaining the graphene adsorption block after natural cooling;
[0070] Step 5, adding the graphene adsorption block into absolute ethanol for 45 m...
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