Carbon nanotube/cotton mixed fabric material and preparation and application thereof
A carbon nanotube and fabric material technology, which is applied in the manufacture of hybrid/electric double-layer capacitors, electrodes of hybrid capacitors, etc., can solve the problems of poor conductivity, unsatisfactory area, low active material loading, etc., and achieves a simple and good preparation method. The effect of conductivity
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Embodiment 1
[0036] With floating chemical vapor deposition direct spinning method, taking ethanol is carbon source, ferrocene is a catalyst precursor, thiophene is a growth promoter (ethanol, ferrocene, thiophene mass ratio is 99: 0.4: 0.6), high purity Nitrogen as carrier gas and protective gas, the ethanol solution of ferrocene and thiophene will be dissolved by a peristaltic pump, and the reactor of 1200 ° C is formed into a reactor of 1200 ° C, and then the carbon nanotube cartridge generated is formed. The conventional enters an open air environment and continuously contracts carbon nanotube fibers in a container containing water. Then 10 carbon nanotube fibers are arranged together in parallel and twisted into a carbon nanotube yarn, and the twist is 2000. Using knitted technology to jointly braided a single cotton yarn with a single cotton yarn.
[0037] Place the mixed weave in the pyrrole solution (concentration is 0.1 mol L) -1 The mixture was stirred for 20 minutes, and then the tr...
Embodiment 2
[0039] Preparation of carbon nanotube fibers and woven fabrics are all in the same embodiment.
[0040] Place the mixed weave in the pyrlove solution (concentration is 0.2 mol L) -1 The mixture was stirred for 20 minutes, and then the trichloride solution (the molar ratio of iron trichloride was 1: 2), which was added dropwise to initiate a polymerization reaction; the polymerization temperature was 0 ° C, the polymerization time was 150 minutes; Take out the fabric, wash and dry it. The load of polypyrrole on the resulting fabric is 13.2 mg cm-2 . Through the electrochemical workstation, the performance of the resulting fabric electrode is tested, and the constant current charge-discharge curve is displayed, in the current density of 5 mA cm. -2 When the area is 4314.5mf cm -2 ; In the current density of 20 mA cm -2 When the capacitance retention ratio is 68.8%. After the cycle is 5,000 times, its capacitance hold rate is 95%, indicating that it has good cycle stability.
Embodiment 3
[0042] Preparation of carbon nanotube fibers and woven fabrics are all in the same embodiment.
[0043] Place the mixed weave in a pyrrole solution (concentration is 0.15 mol L) -1 The mixture was stirred for 20 minutes, and then the trichloride solution (the molar ratio of iron trichloride was 1: 2), which was added dropwise to initiate a polymerization reaction; the polymerization temperature was 0 ° C, the polymerization time was 150 minutes; Take out the fabric, wash and dry it. The load of polypyrrole on the resulting fabric is 10.6mg cm -2 . Through the electrochemical workstation, the performance of the resulting fabric electrode is tested, and the constant current charge-discharge curve is displayed, in the current density of 5 mA cm. -2 When the area is 3775mf cm -2 ; In the current density of 20 mA cm -2 When the capacitance retention rate is 60.9%.
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