A kind of preparation method of dendritic graphene/carbon nanotube composite structure
A carbon nanotube composite, carbon nanotube array technology, applied in structural parts, nanotechnology, nanotechnology and other directions, can solve the problems of difficult performance to meet actual needs, easy to agglomerate, structural advantages are not obvious, etc., to improve the electron transmission efficiency. , High wettability, the effect of reducing the internal resistance of the material
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Embodiment 1
[0023] (1) Preparation of graphene / carbon nanotube array substrate
[0024] Using nickel foil as a catalytic substrate (metal foils such as copper foil can also be used), the chemical vapor deposition of graphene is carried out using a quartz tube furnace. Firstly, the temperature of the tube furnace was raised to 800°C under the atmospheric pressure argon atmosphere. Then argon, hydrogen and methane were introduced at a flow ratio of 10:10:1, the vacuum pump was controlled to adjust the pressure in the tube to 0 torr, the nickel foil was pushed into the constant temperature zone of the tube furnace, stayed for 10 minutes, cooled to room temperature and taken out to obtain Graphene substrate.
[0025] Add 0.1 g of iron acetylacetonate, 0.1 g of aluminum acetylacetonate, 1 g of cetanediol, 1 ml of oleic acid, and 1 ml of oleylamine to 40 ml of dibenzyl ether for reflux reaction. The reflux temperature is set at 250 degrees Celsius, and the reflux time is Set to 90 minutes, af...
Embodiment 2
[0032] (1) Preparation of graphene / carbon nanotube array substrate
[0033] Graphene was prepared by chemical vapor deposition in a quartz tube furnace using copper foil as a catalytic substrate. Firstly, the temperature of the tube furnace was raised to 800°C under the atmospheric pressure argon atmosphere. Then argon, hydrogen and methane are introduced at a flow ratio of 10:10:1, the vacuum pump is controlled to adjust the pressure inside the tube to 0 torr, the copper foil is pushed into the constant temperature zone of the tube furnace, and after staying for 10 minutes, it is moved to the nozzle area and cooled to room temperature, and the graphene substrate was obtained after taking it out.
[0034] Add 0.1 g of iron acetylacetonate, 0.1 g of aluminum acetylacetonate, 1 g of cetanediol, 1 ml of oleic acid, and 1 ml of oleylamine to 40 ml of dibenzyl ether for reflux reaction. The reflux temperature is set at 250 degrees Celsius, and the reflux time is Set to 90 minutes...
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