A method of preparing 2D single-layer nanosheet

摘要

In the present invention, tandem molecular intercalation is proposed, which is a new peeling concept that makes a two-layered two-dimensional layered structure material in a colloid state into a single layer. Tandem molecular intercalation requires a tandem Lewis base intercalate. First, a short "initiation" molecule enters the two-dimensional stratified structure material to widen the layer spacing. And long "main" molecules go between the gaps to maximize the gaps and overcome the forces of interlayer interactions in random mixing of intercalates. Therefore, the two-dimensional layered structure material of a single layer can be obtained by spontaneous peeling. Tandem molecular intercalation has the unique advantage of going from a safe, mild environment (room temperature without sonication or hydrogen evolution) to a simple one-step process. By using an appropriate intercalation rate, according to one embodiment of the present invention, group 4 (TiS₂, ZrS₂), Group 5 (NbS₂), Group 6 (WSe₂, MoS₂) Transition metal two-dimensional layered structure material and MoO₃, V₂O₅, SiH, Black Phosphorus, BN, HNbMoO_6,VOPO_4,HNb₃O_8,HCa₂Nb₃O_10,H₂SrTa₂O₇Dimensional layered material can be successfully made into a single layer nanostructure.;