Abstract: The present invention relates to a method of preparing a black phosphorus nanosheet and application, belonging to the technical field of functional material production. In the method, the black phosphorus sheet is used as the electrolytic anode, and an electrochemical reaction system is constructed together with an inert electrode and an alkaline aqueous electrolyte, wherein the alkaline aqueous electrolyte comprises an N-N dimethylformamide solution dissolved with epoxy resin. In alkaline aqueous electrolyte, the prepared black phosphorus nanosheet structure tends to be more stable, not easy to be damaged and the oxidation degree is reduced. Under alkaline conditions, it is conducive to improve the intercalation and stripping effect of black phosphorus material of anode and make the black phosphorus exfoliation more complete.

Abstract: In the polyurethane sponge stepwise decompression production system, liquid carbon dioxide and other materials are injected into a stirring device at high pressure to obtain a mixture. The mixture is decompressed through the outlet of the stirring device to slightly higher than the saturated vapor pressure of liquid carbon dioxide and fed into a pouring system. When sprayed from the pouring system, it is quickly reduced to atmospheric pressure and foams into a polyurethane sponge. Carbon dioxide remains liquid during the measurement, transportation and mixing to prevent premature vaporization which affects the quality of polyurethane sponges. A filter and a pouring mold are equipped. The mixture is filtered and cut by the filter to form uniform and fine carbon dioxide foam nuclei, which is then sprayed out through the pouring mold and falls onto a conveyor to continuously foam and harden into a polyurethane sponge foam with uniform porosity.

Abstract: The present invention relates to a method of preparing a black phosphorus nanosheet and application, belonging to the technical field of functional material production. In the method, the black phosphorus sheet is used as the electrolytic anode, and an electrochemical reaction system is constructed together with an inert electrode and an alkaline aqueous electrolyte, wherein the alkaline aqueous electrolyte comprises an N-N dimethylformamide solution dissolved with epoxy resin. In alkaline aqueous electrolyte, the prepared black phosphorus nanosheet structure tends to be more stable, not easy to be damaged and the oxidation degree is reduced. Under alkaline conditions, it is conducive to improve the intercalation and stripping effect of black phosphorus material of anode and make the black phosphorus exfoliation more complete.