A kind of zinc manganate/milk carbon composite material and preparation method thereof
A technology of carbon composite materials and zinc manganate, which is applied in nanotechnology for materials and surface science, active material electrodes, nanotechnology, etc., can solve the problems of low purity, easy agglomeration, small specific surface area, etc., and achieve particle size Good uniformity, good structural stability, and uniform overall distribution
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Embodiment 1
[0026] It is weighed 0.8 mmol of zinc chloride, 1.6 mmol of potassium permanganate, 1.6 mmol sodium fluoride is dissolved in 80 ml of deionized water, mix stirring to form a uniform solution, after 30 minutes of agitation, 3 ml of pure milk, continue After stirring for 30 minutes, a uniform mixed solution was obtained; then moved to the hydrothermal reaction kettle of the inner linen into polytetrafluoroethylene, at 200 ° C, water heating reaction for 24 hours, then cooling the water and heat The mixture was centrifuged with deionized water and ethanol, and the precipitate of each session was collected, placed in a drying tank, dried at 60 ° C for 24 hours, producing zinc-manganese acid / milk carbon precursor; finally, place the precursor In the tube furnace, it was calcined at 5 ° C / min and calcined at 500 ° C under the air atmosphere, ie, zinc / milk carbon composite material.
[0027] figure 1 It is the XRD diagram of the Zinc / milk carbon composite prepared by the presen...
Embodiment 2
[0032] It is weighed 0.7 mmol of zinc chloride, 1.4 mmol of potassium permanganate, 1.4 mmol sodium fluoride dissolved in 70 ml of deionized water, mix stirring to form a uniform solution, 25 minutes after agitation, add 2 ml of pure milk, continue After stirring for 25 minutes, a uniform mixed solution was prepared; then moved to the hydrothermal reaction kettle of the inner linen into polytetrafluoroethylene, at a temperature of 190 ° C for 22 hours, and then cooled after the hydrothermal reaction centrifugation were washed three times with deionized water and a mixture of ethanol, the precipitate was collected each time, and placed in the oven, dried for 32 hours at 70 ℃, to obtain manganese zinc / carbon precursor milk; and finally, the precursor is placed In the tube furnace, it was calcined at a heating rate of 5 ° C / min and 0 ° C at 600 ° C for 1 h under the air atmosphere, i.e., qi manganganate / milk carbon composite.
[0033] The experimental results showed that the ex...
Embodiment 3
[0035]It is weighed 0.6 mmol of zinc chloride, 1.2 mmol of potassium permanganate, 1.2 mmol of sodium fluoride dissolved in 60 ml of deionized water, mixed stirring to form a uniform solution, 20 minutes after agitation of vigorous magnetic force, add 1.5 ml of pure milk, Stirring was continued for 15 minutes to prepare a uniform mixed solution; then moved to the hydrothermal reaction kettle of the inner liner into polytetrafluoroethylene, at 180 ° C, water heat reaction for 20 hours, then cooling the water heat The mixed liquid was washed three times with deionized water and ethanol, collectively, collected, placed in a drying tank, dried at 60 ° C for 15 hours, producing zinc-manganese acid / milk carbon precursor; finally, preammers Placed in the tube furnace, at a temperature rise rate of 5 ° C / min, and calcined at 400 ° C under the air atmosphere, the zinc / milk carbon composite material was prepared.
[0036] The experimental results show that the experimental results sho...
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