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Method for preparing nano tube of size and appearance controllable metal copper and its oxides

A technology of nanotubes and metallic copper, applied in the field of preparation of nanomaterials

Inactive Publication Date: 2005-06-01
NORTHEAST NORMAL UNIVERSITY
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This method has not yet seen relevant literature or patent reports in the field involved in this study

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Embodiment Construction

[0007] Preparation of Cu nanotubes: 1 mmol CuCl at room temperature 2 ·H 2 O was dissolved in 5ml of deionized water, then this solution was slowly added dropwise to 130ml of NaOH (3M) solution, stirred well, and then 3mmol of C 16 TMABr (hexadecyltrimethylammonium bromide, abbreviated as CTAB), fully stirred at 40-50°C until the surfactant was completely dissolved to obtain a clear and transparent solution. Add 1ml of hydrazine hydrate (N 2 h 4 ) solution, the homogeneous solution obtained by stirring was further reacted at 20-70°C for 3-7 hours to obtain a dark red precipitate, and the product was centrifuged and washed 5-8 times with absolute ethanol and deionized water to make the surface active The agent and other inorganic ions were completely removed, and then the precipitate was separated by centrifugation, and dried under vacuum at room temperature for 4-5 hours to obtain the product Cu nanotube with a yield of 95% (calculated as Cu).

[0008] Cu 2 Preparation of ...

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Abstract

The invention is exclusively a preparation method of a one-dimensional nanostructure material. This method utilizes the metal copper hydroxide to form a coordination anion in the presence of an excess of strong base, under the action of the surfactant "soft template", through direct hydrothermal treatment or redox reaction, the metal copper and its oxidation nanotubes. This process is simple to operate, and the size of nanotubes is easy to control. The outer diameter of the tube is 5-10nm, the inner diameter is 3-8nm, the length of the tube can reach several hundred nanometers, the diameter and wall thickness of the nanotube are uniform, and the yield of the nanotube can reach 60%. -95%, is a high-yield, low-cost preparation method with industrialization prospects.

Description

technical field [0001] The invention belongs to the preparation method of nano material. Background technique [0002] Since the discovery of carbon nanotubes by Japanese scientist Iijima in 1991, one-dimensional nanostructures, including nanowires, nanorods, nanotubes, nanobelts, nanofibers, etc., have attracted the attention of many chemical, physical and material scientists at home and abroad. This is due to the fact that one-dimensional nanomaterials exhibit unique physical and chemical properties different from their bulk phases and have broad application prospects. In the past ten years, nanotubes with carbon nanotubes as the core have received extensive attention, and most of the work has been devoted to the development of preparation methods and properties of nanotubes. In recent years, breakthroughs have been made in research on nanotubes, and single-walled carbon nanotubes and multi-walled carbon nanotubes, carbides, metals, oxides, and sulfides with a diameter of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B13/14C30B7/00C30B29/60
CPCB82Y30/00C01B13/14C01P2004/13C30B7/00C30B29/605
Inventor 胡长文曹敏花
Owner NORTHEAST NORMAL UNIVERSITY