Preparation method of ionic intercalation type two-dimensional material

Abstract

The invention discloses a preparation method of an ionic intercalation type two-dimensional material. The preparation method comprises the following steps: enabling salt to be in a molten state at preset temperature by using a molten-salt growth method; adding a metal salt precursor in molten salt; and reacting for preset time and taking out, cooling, cleaning, carrying out suction filtering and drying to obtain the ionic intercalation type two-dimensional material. Positive ion intercalation type two-dimensional metallic oxide and negative ion intercalation type two-dimensional metal hydroxide can be prepared; types of positive ions and negative ions in the prepared two-dimensional material can be regulated and controlled by materials of the molten salt and metal salt; another ionic intercalation type two-dimensional material can also be prepared by the method; and the prepared ionic intercalation type two-dimensional material has quite large application prospect in the aspects of energy storage, catalysis, ion exchange and the like.

Description

technical field [0001] The invention belongs to the field of preparation of nanometer two-dimensional materials, and more specifically relates to a preparation method of ion intercalation type two-dimensional materials. Background technique [0002] Two-dimensional materials have many special physical and chemical properties due to their atomic layer thickness and the ability to expose more atoms, and are therefore widely used in superconductivity, field effect transistors, electrocatalysis and energy storage. [0003] At present, the synthesis methods of 2D materials mainly include exfoliation method, chemical vapor deposition method and wet chemical method. The exfoliation method can quickly exfoliate bulk materials with a two-dimensional structure to produce nanosheets, but usually the yield is low, and the quality of the synthesized two-dimensional materials is not uniform; It is an effective method for two-dimensional materials with controllable thickness, but the expe...

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Problems solved by technology

The exfoliation method can quickly exfoliate bulk materials with a two-dimensional structure to produce nanosheets, but usually the yield is low, and the quality of the synthesized two-dimensional materials is not uniform; It is an effective method for two-dimensional materials with controllable thickness, but the expensive cost and complicated preparation process have greatly hindered its commercial production; wet chemical methods usually use additives such as surfactants to assist in the synthesis of two-dimensional materials. Materials can be prepared in a large area, but the reaction time is relatively long and organic impurities need to be removed in the later stage; to achieve rapid and efficient preparation of large-area and high-quality two-dimensional materials, especially ion intercalation type two-dimensional materials, is still a challenge. a big challenge

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