Method for growing laminated double-metal hydroxide on surface of any substrate

A layered bimetallic, hydroxide technology, applied in chemical instruments and methods, aluminum compounds, inorganic chemistry, etc., can solve the problems of difficulty in ensuring the regularity of LDH nano-rolls, large environmental impact, and cumbersome operations, so as to shorten the preparation time. Long-lasting, widely applicable, easy-to-use effects
CN107500322AInactive Publication Date: 2017-12-22ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2017-12-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for growing laminated double-metal hydroxides on the surface of any substrate. The method comprises the following steps: (1) dissolving dopamine and polyethyleneimine in a buffer solution, soaking a substrate into the solution, and performing oscillation deposition so as to obtain a dopamine / polyethyleneimine modified substrate; and (2) soaking the surface modified substrate obtained in the step (1) into a solution of soluble divalent metal salts, soluble trivalent metal salts and alkali substances, and performing a hydrothermal reaction for 1-24 hours at 90-120 DEG C, thereby obtaining a composite material that laminated double-metal hydroxides are uniformly grown on the surface of the substrate. The method disclosed by the invention is simple and convenient to operate and wide in application, and the preparation time of an LDH (Lactate Dehydrogenase) functional device is effectively shortened; and in addition, as no organic solvent or surfactant is used, the cost is relatively low, and the environment is not polluted.
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Description

technical field

[0001] The invention relates to the field of preparation of inorganic materials, in particular to a method for growing layered double metal hydroxides on any surface. Background technique

[0002] Realizing the shape control of nanocrystals has always been a research hotspot in the field of materials. The discovery of carbon nanotubes has drawn widespread attention to one-dimensional tubular materials, and their applications have covered catalysis, electronics, magnetism, and optics. At present, a series of tubular materials, such as carbon tubes, nickel tubes, and titanium dioxide tubes, have been successfully prepared by hydrothermal method and intercalation exfoliation method, but one-dimensional layered double hydroxides (Layered Double Hydroxides, abbreviated as for LDH). LDH is a class of hydrotalcite compounds with exchangeable anions between layers, and its composition can be expressed by the following general formula: [M 2+ 1-x m 3+ x (OH) 2 ]...

Claims

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