Preparation method of nanometer motors

A motor and nano technology, applied in the field of preparation of nanotubes, can solve the problems of high cost, small number of synthesis at one time, difficult operation requirements of particle beam jet method, etc., and achieve the effects of low cost, controllable size and simple operation.

Active Publication Date: 2014-08-20
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problems that the existing method for synthesizing micro-nano motors by electrochemical deposition is high in cost, the number of synthesis at one time is small, and the operation requirements of the particle beam spraying method are difficult, and provides a preparation method of nano-motors

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  • Preparation method of nanometer motors
  • Preparation method of nanometer motors
  • Preparation method of nanometer motors

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specific Embodiment approach 1

[0018] Specific embodiment one: the preparation method of the artificial nanotube of the present embodiment is carried out according to the following steps:

[0019] 1. Preparation of metal catalytic particles;

[0020] 2. Using porous alumina sheets, polycarbonate (PC) or porous silicon sheets as templates, assemble polyelectrolyte layers into the holes of the template to obtain the skeleton of nanotubes;

[0021] 3. Assembling the metal catalyst particles prepared in step 1 onto the skeleton of nanotubes obtained in step 2;

[0022] 4. Dissolving and removing the template treated in step 3 with a template solvent to obtain artificial nanotubes.

[0023] This embodiment uses platinum or silver nanoparticles that catalyze hydrogen peroxide to decompose oxygen, templates for preparing nanotubes, artificial or natural polyelectrolytes for preparing nanotubes as basic materials, and use layer-by-layer assembly methods to combine polyelectrolyte nanotubes with The metal particle...

specific Embodiment approach 2

[0024] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the metal catalytic particles in step 1 are platinum particles with a particle size of 3nm to 100nm, silver particles with a particle size of 3nm to 100nm, or platinum or silver particles as the core Microparticles coated with citric acid or polydimethyldiallylammonium chloride with a particle size of 3nm to 100nm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Embodiment 3: This embodiment differs from Embodiment 1 and Embodiment 2 in that the pore diameter of the porous alumina sheet is 200-400 nm. Others are the same as those in the first and second specific embodiments.

[0026] The porous alumina sheet of this embodiment is a commercially available product.

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Abstract

The invention relates to a preparation method of nanometer motors, which aim to solve the technical problem that an existing method of synthetizing micro-nanometer motors by means of electrochemical deposition is high in cost, small in one-time synthetizing number and high in required difficulty of particle beam spraying method. The preparation method includes: firstly, preparing metal catalytic particles; secondly, assembling a polyelectrolyte layer into a hole of a template; thirdly, assembling metal catalytic particles; and fourthly, removing the template to obtain an artificial nanometer pipe. The preparation method is simple in operation, low in cost and large in one-time synthetizing number, and the size of the artificial nanometer pipes is controllable. Besides, the artificial nanometer pipes can be used as nanometer motors in the medical field.

Description

technical field [0001] The invention relates to a method for preparing nanotubes. Background technique [0002] Artificial nano-scale motors are a hot area of ​​nanoscience in recent years. Micro-nano motors are micro-nano devices that catalyze hydrogen peroxide to generate oxygen and use bubbles to propel themselves forward, so that they can swim in a solution containing hydrogen peroxide. . The existing nanomotor synthesis methods include electrochemical deposition and particle beam spraying. However, the cost of micro-nanotubes synthesized by electrochemical deposition is expensive, and it is difficult to synthesize extremely small motors, and the number of synthesis at one time is small; the operation requirements of particle beam spraying are difficult, and only spherical motors can be prepared, and tubular motors cannot be prepared. Contents of the invention [0003] The present invention aims to solve the technical problems of high cost, small number of synthesis ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B82B3/00B82B1/00B82Y15/00B82Y40/00
Inventor 贺强吴志光和文平
Owner HARBIN INST OF TECH
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