Molybdenum sulfide/nanocarbon MoS2/NC in-situ composite material and preparation method and application thereof
A technology of in-situ composite materials and nano-carbon materials, which is applied in nanotechnology, electrodes, electrolysis processes, etc., can solve the problems of poor electron transfer, less active sites, and poor conductivity, and achieve lower overpotentials, simple methods, and lower energy effect
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Embodiment 1
[0035] Preparation of CNT dispersion.
[0036] Take 0.6g of adenine and 2.10g of 3-glycidyloxypropyltrimethoxysilane, use 50mL of anhydrous methanol as a solvent, reflux at 60°C for 36h, and obtain light yellow viscous liquid DSiA after cooling and rotary evaporation Precursor. Subsequently, 50 mL of 0.1 mol / L formic acid solution was added, and stirred at room temperature for 72 h to obtain a protonated DSiA solution. The DSiA solution obtained by the reaction was configured to 10 mg / mL with deionized water, and transferred to a reagent bottle for later use.
[0037] 30 mg of carbon nanotubes were taken, placed in 3 mL of 10 mg / mL DSiA aqueous solution, and deionized water was added to 10 mL to prepare a CNT dispersion.
Embodiment 2
[0039] Molybdenum Sulfide Nanosheet / Carbon Nanotube Composite 1T-MoS 2 / CNT.
[0040] 1T-MoS 2 The preparation method of / CNT composite material, comprises the following steps:
[0041] After getting 99mg ammonium molybdate tetrahydrate and 342mg thiourea and adding 10mL deionized water to stir and dissolve, the solution was mixed with the CNT dispersion in Example 1, and the mixed solution was moved to a polytetrafluoroethylene-lined reactor, and the mixture was heated at 200 React at ℃ for 12h, wash and dry after cooling to get 1T-MoS 2 / CNT composites.
[0042] 1T-MoS 2 / CNT composite material related performance testing:
[0043] 1) figure 1 is H-MoS 2 、M-MoS 2 , H-MoS 2 / CNT, M-MoS 2 / XRD spectrum of CNT. It can be seen from the spectrum that the H-MoS obtained by hydrothermal synthesis 2 , its characteristic peaks appear at 2θ=14.1°, 33.3°, 39.4°, 58.6°, corresponding to 2H-MoS 2 (002), (100), (103) and (110) crystal planes, the calculated d(002) layer spaci...
Embodiment 3
[0050] Molybdenum Sulfide Nanosheets / Reduced Graphene Oxide Composite 1T-MoS 2 / RGO
[0051] The preparation method of molybdenum sulfide nanosheet / reduced graphene oxide composite material uses the above-mentioned dispersant DSiA, and the specific preparation method is as follows:
[0052] The graphene oxide dispersion was prepared by the Hummers method. Take 1 g of graphene oxide and 2 g of ascorbic acid, heat it at 80°C for 12 hours to obtain a reduced graphene oxide hydrogel, wash it with deionized water several times to remove the excess reducing agent, and use a glass rod to dissolve the water gel. The gel was initially pulverized. Take 30 mg of reduced graphene oxide hydrogel, add 3 mL of 10 mg / mL DSiA solution, add deionized water to make up to 10 mL, and ultrasonically disperse it in a water bath for 5 min, and then use an ultrasonic cell pulverizer for further ultrasonic dispersion for 30 min to obtain the corresponding Reduced graphene oxide dispersion. The ultra...
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