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 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: A data storage method includes the following steps: storing data to be stored into a mutable table, the mutable table being located in a RAM. If a storage content of the mutable table is greater than or equal to a preset storage content threshold, modifying the mutable table into an immutable table and stopping receiving storage of the data to be stored; if a storage content of a lowest level in a disk is greater than or equal to a storage content threshold of a present level, and next level higher in the disk is stored with columnar format, storing data of the lowest level to the next level in the columnar format; and if the lowest level is stored with row format, storing data in the immutable table to the lowest level in the row format.

Abstract: Disclosed an ink jet printing paper and a coating color used in preparing the paper, and associated methods for manufacturing the paper and its coating. The coating comprises the following components as raw materials: an anionic pigment, an adhesive and a cationic polymer, wherein the adhesive comprises a silane-modified polyvinyl alcohol. In the inventive ink jet printing paper coating, the raw material cost can be relatively low, the coating color solids content can reach 50% in many embodiments, and the coating can have a good water-retaining property. It can be suitable for large-scale production. In ink jet printing, it can give clear images with high color density, and can meet demanding requirements for high speed commercial ink jet printing.

Abstract: A data storage method includes the following steps: storing data to be stored into a mutable table, the mutable table being located in a RAM. If a storage content of the mutable table is greater than or equal to a preset storage content threshold, modifying the mutable table into an immutable table and stopping receiving storage of the data to be stored; if a storage content of a lowest level in a disk is greater than or equal to a storage content threshold of a present level, and next level higher in the disk is stored with columnar format, storing data of the lowest level to the next level in the columnar format; and if the lowest level is stored with row format, storing data in the immutable table to the lowest level in the row format.