Black phosphorus carbon nanotube composite material and preparation method thereof
A technology of carbon nanotubes and composite materials, applied in the directions of carbon nanotubes, nanocarbons, phosphorus compounds, etc., can solve the problem of poor dispersion effect of carbon nanotubes, poor composite effect of carbon tubes and black phosphorus, and unstable stability of composite materials. It can improve the cycle performance, reduce polarization, and improve the high-rate charge and discharge.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0039] as attached figure 1 As shown, the embodiment of the present invention provides a method for preparing a black phosphorus carbon nanotube composite material, comprising the following steps:
[0040] S10. Obtain a metal precursor, and dissolve the metal precursor in an alcohol solution to obtain a metal precursor solution;
[0041] S20. Obtain black phosphorus, add the black phosphorus to the metal precursor solution, disperse, and dry to obtain a metal black phosphorus composite;
[0042] S30. Under a protective gas atmosphere with a pressure of 4500kPa-5000kPa, the metal black phosphorus composite is heated up to 500-600°C for reaction, and then hydrogen gas and carbon source are fed in order to react to obtain a black phosphorus carbon nanotube composite material.
[0043] The preparation method of the black phosphorus carbon nanotube composite material provided by the embodiment of the present invention first dissolves the metal precursor in an alcohol solvent to obta...
Embodiment 1
[0075] A black phosphorus carbon nanotube composite material, comprising the following preparation steps:
[0076] ①Dissolve nickel nitrate hexahydrate, aluminum nitrate nonahydrate, magnesium nitrate hexahydrate, ammonium molybdate, and citric acid in alcohol, and stir for 2 hours to mainly dissolve the metal precursor to obtain a metal precursor solution;
[0077] ②Add black phosphorus to the obtained metal precursor solution, ultrasonically or ball mill for 40 minutes, and dry in a rotary evaporator at 80°C to obtain a metal black phosphorus composite. The loading of iron, cobalt and nickel in the metal black phosphorus composite is 0.5%. ;
[0078] ③The metal black phosphorus compound obtained is placed in a pressure vessel, under the absolute pressure of 4800kPa, under N 2 In an atmosphere with a heating rate of 2°C / min, heat to 550°C, keep the temperature for 2 hours, pass hydrogen and nitrogen at a volume ratio of 1:5, and react for 5 minutes; finally, turn off the hyd...
Embodiment 2
[0080] A black phosphorus carbon nanotube composite material, comprising the following preparation steps:
[0081] ①Dissolve ferric nitrate nonahydrate, cobalt nitrate hexahydrate, aluminum nitrate nonahydrate, magnesium nitrate hexahydrate, ammonium molybdate, and citric acid in alcohol, and stir for 5 hours to mainly dissolve the metal precursor to obtain a metal precursor solution;
[0082] ②Add black phosphorus to the obtained metal precursor solution, ultrasonically or ball mill for 60 minutes, and dry in a rotary evaporator at 80°C to obtain a metal black phosphorus composite. The loading of iron, cobalt, and nickel in the metal black phosphorus composite is 0.1% ;
[0083] ③The metal black phosphorus compound obtained is placed in a pressure vessel, under the absolute pressure of 5000kPa, under N 2 In an atmosphere with a heating rate of 5°C / min, heat up to 600°C, keep the temperature for 3 hours, pass hydrogen and nitrogen at a volume ratio of 1:6, and react for 3 min...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More