A kind of preparation method of loose structure COP two-dimensional nanosheet
A two-dimensional nano, loose technology, applied in the direction of nanotechnology, phosphide, etc., can solve the problems of poor conductivity, large overpotential, application limitations, etc., and achieve the effect of simple preparation process and easy repeatability
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[0034] The invention relates to a method for preparing two-dimensional CoP nanosheets with a loose structure. The preparation method uses cobalt hydroxide nanosheets as a precursor to be placed on one end of the porcelain boat, sodium metaphosphate is placed on the other end of the porcelain boat, and then the porcelain boat is placed Placed in an inert gas-protected heating furnace for heating reaction, wherein the end equipped with sodium metaphosphate is facing the gas outlet of the heating furnace, and then the product is washed, centrifuged and dried in sequence to obtain CoP two-dimensional nanosheets with a loose structure. The ratio of sodium metaphosphate to precursor is 5-25:1. The heating furnace is preferably a tube furnace, and the porcelain boat is a corundum porcelain boat. The inert gas uses N 2 , the heating reaction is at N 2 Carried out in a tube furnace under protection, raised to 300-350°C at a rate of 2°C / min, and kept for 2h. The product is washed wit...
Embodiment 1
[0039] A method for preparing a loose-structured CoP two-dimensional nanosheet, comprising the following steps:
[0040] (1) Precursor (Co(OH) 2 ) preparation
[0041] 1) Add 1mmol of cobalt acetate and 0.5mmol of aluminum chloride into 10mL of deionized water, stir evenly, then add 1mL of ammonia water while stirring, and stir for 0.5h with magnetic force to obtain a precipitate.
[0042] 2) Pour the precipitate into a polytetrafluoroethylene-lined stainless steel autoclave, heat up to 120°C, react for 2 hours, and cool after the reaction;
[0043] 3) The reaction product was centrifuged to obtain a solid powder, which was washed with distilled water and ethanol in sequence, and then dried at 60°C for 24 hours to obtain the precursor (Co(OH) 2) two-dimensional nanosheets.
[0044] (2) Preparation of CoP two-dimensional nanosheets with loose structure
[0045] 1) Weigh 0.05g Co(OH) 2 Place it on one end of the corundum porcelain boat, then weigh 0.6g of sodium metaphospha...
Embodiment 2
[0051] A method for preparing a loose-structured CoP two-dimensional nanosheet, comprising the following steps:
[0052] (1) Precursor (Co(OH) 2 ) preparation
[0053] 1) Add 1 mmol of cobalt acetate and 0.5 mmol of aluminum chloride into 10 mL of deionized water, stir evenly, then add 1.25 mL of ammonia water while stirring, and stir for 0.5 h with magnetic force to obtain a precipitate.
[0054] 2) Pour the precipitate into a polytetrafluoroethylene-lined stainless steel autoclave, heat up to 120°C, react for 8 hours, and cool after the reaction;
[0055] 3) The reaction product was centrifuged to obtain a solid powder, which was washed with distilled water and ethanol in sequence, and then dried at 60°C for 24 hours to obtain the precursor (Co(OH) 2 ) two-dimensional nanosheets.
[0056] (2) Preparation of CoP two-dimensional nanosheets with loose structure
[0057] 1) Weigh 0.05g Co(OH) 2 Place it on one end of the corundum porcelain boat, then weigh 1g of sodium meta...
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