A high-strength graphene film-based acoustic wave detector
A technology of graphene film and high-strength graphite, which is applied in the direction of measuring ultrasonic/sonic/infrasonic waves, instruments, measuring devices, etc. It can solve the problems of inability to detect high-frequency sound waves, insufficient strength, and low absolute mechanics
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Embodiment 1
[0027] (1) Graphene oxide was prepared into a graphene oxide aqueous solution with a concentration of 0.5ug / mL, and a hydrophilic polytetrafluoroethylene membrane was used as a substrate to form a membrane by suction filtration.
[0028] (2) Put the graphene oxide film attached to the hydrophilic polytetrafluoroethylene film in a closed container, and fumigate from the bottom to the top for 1 hour at a high temperature of 80 degrees HI.
[0029] (3) The melted solid transfer agent camphor is uniformly coated on the surface of the reduced graphene oxide film by evaporation, casting, etc., and slowly cooled at room temperature, and the film and the substrate are separated.
[0030] (4) Slowly volatilize the solid transfer agent from the graphene film supported by the solid transfer agent obtained above at 40 degrees to obtain an independent self-supporting graphene film.
[0031] (5) Spraying a layer of metal titanium on the surface of the chemically reduced graphene film by mea...
Embodiment 2
[0037] (1) Graphene oxide was prepared into a graphene oxide aqueous solution with a concentration of 10ug / mL, and the PC film was used as the substrate to form a film by suction filtration.
[0038] (2) Put the graphene oxide film attached to the PC film in a closed container, and fumigate from the bottom to the top at 100 degrees HI for 0.1 h.
[0039] (3) Uniformly coat the melted solid transfer agent naphthalene on the surface of the reduced graphene oxide film by evaporation, casting, etc., and slowly cool it at room temperature.
[0040] (4) Slowly volatilize the graphene film supported by the solid transfer agent obtained above at 80 to obtain an independent self-supporting graphene film.
[0041] (5) Spraying a layer of metal titanium on the surface of the chemically reduced graphene film by means of magnetron sputtering. By controlling the sputtering parameters, the molar weight of the finally sputtered metal nanoparticles is 18.4% of the molar weight of carbon atoms...
Embodiment 3
[0047] (1) Graphene oxide is prepared into a graphene oxide aqueous solution with a concentration of 1 ug / mL, and the AAO membrane is used as the substrate to form a film by suction filtration.
[0048] (2) Put the graphene oxide film attached to the AAO film in an airtight container, and fumigate from the bottom to the top for 0.5 h at a high temperature of 90 degrees HI.
[0049] (3) Uniformly coat the melted solid transfer agent sulfur on the surface of the reduced graphene oxide film by evaporation, casting, etc., and slowly cool it at room temperature.
[0050] (4) Slowly volatilize the graphene film supported by the solid transfer agent obtained above at 120 degrees to obtain an independent self-supporting graphene film.
[0051] (5) Spray one layer of metal cobalt on the graphene film surface of chemical reduction with the mode of magnetron sputtering, by controlling the sputtering parameter, the molar weight of the metal nanoparticle of final sputtering is the carbon a...
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