Dendritic self-similar metal-organic framework composites and their preparation and application

A technology of metal-organic frameworks and organic ligands, which is applied in the analysis of materials, electrochemical variables of materials, and material analysis through electromagnetic means. It can solve the problems that fractal structures cannot be formed and metal-organic framework materials cannot achieve self-similar growth.
CN110183674BActive Publication Date: 2020-07-10HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2020-07-10

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Abstract

The invention discloses a dendritic self-similar metal organic framework composite material and preparation and application thereof, and belongs to the technical field of nano materials. The metal organic framework material contains copper ions and an organic ligand, wherein the copper ions are connected with the organic ligand through coordinate bonds, the organic ligand is 2,3,6,7,10,11-hexahydroxytriphenyl, and the metal organic framework material is of a dendritic self-similar morphology; and preferably, the metal organic framework material is deposited on flexible carbon paper. A preparation method of the dendritic self-similar metal organic framework composite material comprises the steps: using a copper ammonia solution as a precursor, preparing copper hydroxide of a fractal structure by using a random walk principle, and assembling the copper ions and the organic ligand by a heteroepitaxial assembly method so as to obtain the metal organic framework. When the metal organic framework material is applied to the field of sodium ion electrochemical sensors, a low detection limit, a wide linear range and a high detection sensitivity are exhibited.
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Description

technical field

[0001] The invention belongs to the technical field of nanomaterials, and in particular relates to a dendritic self-similar metal-organic framework composite material and its preparation and application. Background technique

[0002] Metal-organic framework, also known as porous polymer, is an organic-inorganic hybrid material formed by self-assembly of organic ligands and metal ions or clusters. Its internal pore structure can be adjusted, and it has adsorption, optical, and electromagnetic properties. It shows great development potential and bright prospect in the field of modern functional materials. Especially for electrochemical sensors, the internal pore structure of metal-organic frameworks has a significant impact on their electrochemical transport properties. The challenge lies in exploring more properties and developing more functions of MOFs. An effective strategy to explore their physicochemical properties is to control the morphology and size of...

Claims

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