Carbon-based fibrous water flow nano-generator and preparation method thereof
A nano-generator and carbon-based fiber technology, applied in the direction of generator/motor, nanotechnology, nanotechnology, etc., can solve the problems of complex generator structure, small overall output power, low energy conversion efficiency, etc., and achieve excellent environmental stability high mechanical strength and low cost
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Embodiment 1
[0020] 30 cm long carbon fibers were ultrasonically washed with acetone, ethanol and deionized water for 30 minutes, and then dried naturally. Pre-oxidize the dried carbon fiber at 50°C for 5 hours in a mixed solution of 10% sulfuric acid and 5% nitric acid. After taking it out, wash it with deionized water and dry it naturally for later use. The oxidized carbon fiber was placed in a 50 ml high-pressure hydrothermal kettle, and then 35 ml of a mixed solution of cobalt nitrate and urea with a molar ratio of 1:3 was added to the hydrothermal kettle, and the reaction was carried out at 160° C. for 16 hours. After the reaction, the carbon fibers were taken out, ultrasonically cleaned and dried naturally. Then, the carbon fiber coated with basic cobalt carbonate was placed in an argon atmosphere and calcined at 300° C. for 30 minutes to obtain a core-shell carbon fiber coated with tricobalt tetroxide nanowires.
[0021] Cut a 15 cm long core-shell carbon fiber with cobalt trioxid...
Embodiment 2
[0023] 50 cm long carbon fibers were ultrasonically washed with acetone, ethanol and deionized water for 30 minutes, and then dried naturally. The dried carbon fibers were placed in a mixed solution of 10% sulfuric acid and 5% potassium persulfate, and pre-oxidized at 50° C. for 10 hours. After taking it out, wash it with deionized water and dry it naturally for later use. The oxidized carbon fiber was placed in a 50 ml high-pressure hydrothermal kettle, and then 35 ml of a mixed solution of ammonium molybdate and thiourea with a molar ratio of 1:3 was added to the hydrothermal kettle, and reacted at 200 ° C for 24 hours. After the reaction, the carbon fibers were taken out, ultrasonically cleaned and dried naturally, and then calcined at 500°C for 1 hour in an argon atmosphere to obtain core-shell carbon fibers coated with nanomolybdenum disulfide nanosheet arrays.
[0024] Cut a 10 cm long carbon fiber with a molybdenum disulfide array, connect its two ends to a copper wire...
Embodiment 3
[0032] 20 cm long carbon nanotube fibers were washed in sequence with acetone and deionized water, and then dried naturally. The dried carbon nanotube fibers were oxidized in an ozone environment for 1 hour to achieve the purpose of hydrophilic modification. The oxidized carbon nanotube fibers were placed in a 50 ml autoclave, and then 35 ml of 2% potassium permanganate solution was added into the autoclave to react at 180° C. for 12 hours. After the reaction, the carbon fibers were taken out, ultrasonically cleaned and dried naturally, and then calcined at 500° C. for 1 hour in an argon atmosphere to obtain core-shell carbon nanotube fibers coated with manganese dioxide nanowires.
[0033] Cut 8 cm long core-shell carbon nanotube fibers covered with manganese dioxide nanowires, connect their two ends to copper wires, and penetrate them into a polypropylene plastic hose with a diameter of 2 mm. Carbon fiber exposed hose. Then install the water inlet and outlet joints on both...
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