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: The present invention relates to fabrication method and application of cobalt and nitrogen co-doped three-dimensional (3D) structured carbon matrix, more particularly, to the 3D structured carbon matrix is crosslinked by carbon nanotubes and graphene nanosheets. The fabrication method is: the cobalt salt solution is firstly prepared and totally mixed with the 2-methylimidazole organic ligand. After filtration, the carbon precursor is obtained. The carbon precursor is fully washed, dried and grounded with the inorganic salt powder containing template and pore-forming agents. Finally, the mixture is calcinated at elevated temperature. The product is acid-washed and dried to obtain the 3D structured carbon matrix product. The as-prepared 3D structured carbon matrix product can be a promising noble metal-free catalyst as the cathode for the polymer electrolyte membrane fuel cell.

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.