Preparation method of nano black phosphorus
A black phosphorus and nano technology, which is applied in the field of preparation of nano black phosphorus, can solve the problems of increasing the cost of raw materials, and achieve the effect of saving the cost of raw materials, having many types and high application potential.
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Embodiment 1
[0031] Example 1: The preparation method of the nano black phosphorus is as follows:
[0032] (1) In a helium atmosphere, mix 5 mg of red phosphorus and 5 mg of graphene in 1 mL of absolute ethanol and grind for 30 minutes, then add a disk-shaped nickel foam with a diameter of 14 mm together with ultrasound for 20 minutes to make the mixture evenly loaded On the nickel foam disc, blow dry the nickel foam disc loaded with the mixture by blowing in helium gas. After drying, place a blank nickel foam disc (without load) with a diameter of 14mm on each of the nickel foam discs (no load) for tableting treatment , The negative electrode material is prepared and used as the negative electrode, the lithium sheet is used as the positive electrode, assembled into a lithium ion battery in the glove box, and then the constant current discharge and charge are sequentially performed in the voltage range of 0.01-2.0V;
[0033] (2) Step (1) After charging, under helium atmosphere, disassemble the ...
Embodiment 2
[0035] Embodiment 2: The preparation method of this nano black phosphorus is as follows:
[0036] (1) In a nitrogen atmosphere, add 6mg Ni 2 P and 5mg hexagonal boron nitride were mixed and ground in 1.5mL acetone for 35 minutes, and the mixture was sprayed evenly on the 14mm foamed nickel discs, and then nitrogen was blown into the foamed nickel discs loaded with the mixture to dry and blow dry Then put a blank nickel foam disk with a diameter of 14mm on the top and bottom of the nickel foam disk loaded with the mixture for tablet pressing, use it as the negative electrode, and the sodium tablet as the positive electrode, and assemble the sodium ion battery in the glove box. Perform constant current discharge and charge sequentially within the voltage range of 0.02-2.3V;
[0037] (2) Step (1) After charging, under nitrogen atmosphere, disassemble the battery, take out the negative electrode, soak it in acetone for 20 minutes, then put it in 25mL of deionized water, and shake it at...
Embodiment 3
[0038] Embodiment 3: The preparation method of the nano black phosphorus is as follows:
[0039] (1) In an argon atmosphere, add 8mg Cu 3 P and 5.3 mg of graphene were mixed and ground in 2 mL of absolute ethanol for 40 minutes, and then the mixture was sprayed evenly on the 16mm diameter foamed copper disc with a spray gun, and then argon gas was introduced to load the mixture of foamed copper discs After blowing dry, put a blank copper foam disk with a diameter of 16mm on top and bottom of the copper foam disk loaded with the mixture for tablet pressing, use it as the negative electrode, and the lithium plate as the positive electrode, and assemble it in the glove box. Ion battery, and then perform constant current discharge and charge in sequence within the voltage range of 0.03-2.5V;
[0040] (2) Step (1) After charging, under argon atmosphere, disassemble the battery, take out the negative electrode, soak it in absolute ethanol for 12 minutes, and then put it into 35mL ultrapu...
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