Method for producing cochleiform carbon fiber with catalyst
A helical carbon fiber and catalyst technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, fiber chemical characteristics, etc., can solve problems such as high cost, difficulty in controlling metal particle dispersion and particle size, and save production costs , Overcome the difficulty of controlling the dispersion and particle size of metal particles, and improve the growth efficiency
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Embodiment 1
[0018] With 80ml deionized water, 0.7755g Ni(NO 3 ) 2 ·6H 2 O, 0.5002g Al(NO 3 ) 3 ·7H 2 After O is formulated into a salt solution, 0.7928g of urea is added to make a mixed solution. Put it into the liner of the polytetrafluoroethylene resin of 100ml, seal in the autoclave. Put it into an oven at 120°C for crystallization for 15 hours, and finally take out the liner. After the reaction was completed, it was suction filtered, washed twice with deionized water, and dried at 70° C. for 15 hours.
[0019] Put 50 mg of the hydrotalcite prepared above into a porcelain boat and put it into a quartz tube, pass in nitrogen gas (60ml / min), raise the temperature to 700°C at a rate of 2°C / min, keep it warm for 20min, and then continue to pass in acetylene for 1h (The flow rates of acetylene and nitrogen are 6ml / min and 60ml / min respectively), and finally cooled to room temperature with the furnace to obtain chiral helical carbon fibers. The two helical carbon nanofibers grown sym...
Embodiment 2
[0021] With 80ml deionized water, 0.3785g NiSO 4 ·6H 2 O, 0.0372g Cu(NO 3 ) 2 ·3H 2 O, 0.6506gMgCl 2 ·6H 2 O and 0.3863g AlCl 3 ·6H 2 After O is formulated into a salt solution, 1.5375g of urea is added to make a mixed solution. Put it into the liner of the polytetrafluoroethylene resin of 100ml, put into the autoclave and seal. Put it in an oven at 150°C for 24 hours for crystallization, and finally take out the liner. After the reaction, filter with suction, wash twice with deionized water, and dry at 70° C. for 20 hours.
[0022]Put 40 mg of the hydrotalcite prepared above into a porcelain boat and put it into a quartz tube, pass in nitrogen gas (65ml / min), raise the temperature to 700°C at a rate of 5°C / min, keep it warm for 30min, and then continue to pass in acetylene for 1h30min (The flow rates of acetylene and nitrogen are 6ml / min and 65ml / min respectively), and finally cooled to room temperature with the furnace to obtain chiral helical carbon fiber and doub...
Embodiment 3
[0024] With 80ml deionized water, 1.2836g NiCl 2 ·6H 2 O, 0.1498g CuSO 4 ·5H 2 O, 0.7503gAl(NO 3 ) 3 ·7H 2 O prepared into a salt solution and then added 1.5856g of urea to make a mixed solution. Put it into the liner of the polytetrafluoroethylene resin of 100ml, put into the autoclave and seal. Put it into an oven at 150°C for 20 hours of crystallization, and finally take out the liner. After the reaction was completed, it was filtered with suction, washed twice with deionized water, and dried at 60° C. for 15 hours.
[0025] Put 45 mg of the hydrotalcite prepared above into a porcelain boat and put it into a quartz tube, pass in nitrogen gas (60ml / min), raise the temperature to 500°C at a rate of 10°C / min, keep it warm for 50min, and then continue to pass in acetylene for 1h30min (The flow rates of acetylene and nitrogen are 6ml / min and 60ml / min respectively), and finally cool down to room temperature with the furnace to finally obtain double-helix carbon fiber form...
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