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Metal nanometertube preparation method

A metal nano and metal technology, applied in the direction of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problems of few applications, and achieve the effect of large adjustable range, uniform diameter and uniform pore size

Inactive Publication Date: 2006-05-10
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in addition to showing certain advantages in the preparation of a few materials, physical methods are rarely used in the preparation of other materials.

Method used

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  • Metal nanometertube preparation method

Examples

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Embodiment 1

[0021] Add 20ml H into a 250ml two-neck bottle 2 PtCl 6H 2 O ethylene glycol solution, add 20ml NaOH ethylene glycol solution dropwise to chloroplatinic acid ethylene glycol solution under electromagnetic stirring, keep the pH in the range of 7-11.5, and get transparent yellow platinum hydroxide colloidal solution. The system was heated at 180°C for 3 hours under electromagnetic stirring, and N 2 Air flow through the reaction system (N 2 The flow rate is not specifically required) to take away water and organic by-products to obtain a brown-red platinum colloid (3.7mg Pt / ml) solution. This colloid is very stable, and no precipitation is observed after being left for a long time.

[0022] Take 10ml of the prepared platinum colloidal solution and 40ml of ethanol and add it to 50ml of triphenylphosphine toluene solution under stirring. The molar ratio of triphenylphosphine to platinum is 0.5, and the mixed system is a homogeneous brown-red triphenyl Phosphine modified platin...

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Abstract

This invention relates to the metal nanometer tube making method, which includes the following steps: fistly making the metal colloid water-solubility solution, then extracting the metal from the water-solubility solution by the organic substance that has the coordination action with the metal, and distributing it in the organic solvent to get the metal colloid solution. The metal will deposit on the substrate when various substrates dips in this solution. If the substrate is the moulding board with the nanometer opening, then the metal will deposit on the inwall of the opening to form the matel nanometer tube. Controlling the dipping time and dipping number can get the nanometer tubes with different thickness. Using the moulding boards with different internal diameter nanometer opening can get the namometer tubes with different diametics. And using this invention can not only obtain the metal namometer tube whose structure and dimension can be controlled, and can obtain the metal nanometer tube array whose height is ordered.

Description

technical field [0001] The invention relates to a method for preparing metal nanotubes, in particular to a method for preparing highly ordered and diameter-controllable metal nanotubes. Background technique [0002] Since the discovery of carbon nanotubes by Iijima in 1991, various nanotubes have attracted widespread attention. In recent years, metal nanotubes, inorganic oxide and sulfide nanotubes, polymer nanotubes, etc. have been made, and they have shown great application prospects in photophysics, photochemistry, magnetism, mechanics, electronics, sensing, etc. And it has far-reaching significance for basic research in the field of science. [0003] In the current prior art, there are many methods for preparing nanotubes. There are physical methods, mainly including laser ablation method, evaporation condensation method, arc discharge method, etc.; chemical methods, mainly including chemical vapor deposition method, solution reaction method, template method and compre...

Claims

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Application Information

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IPC IPC(8): C23C18/00B82B3/00
Inventor 万立竣牟勇燕梁汉璞白春礼
Owner INST OF CHEM CHINESE ACAD OF SCI
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