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Preparation method of intelligent molecular switch

A technology of switches and nanomolecules, which is applied in the field of preparation of intelligent molecular switches, can solve the problems that only one or a small amount of intelligent nanostructures can be processed, and cannot meet the large-scale industrial commercial application of molecular switch nanorobots, and achieve fast response speed , Low preparation cost, strong manipulation effect

Pending Publication Date: 2022-07-01
DALIAN JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the smart nanostructures represented by nickel-titanium shape memory alloys are processed in situ at the micro / nano scale for a long time using nano-processing equipment such as focused ion beam (FIB), and only one or a small amount of smart nanostructures can be processed at a time. Nanostructures cannot meet the large-scale industrial commercial application of molecular switches and nanorobots in the future

Method used

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  • Preparation method of intelligent molecular switch
  • Preparation method of intelligent molecular switch
  • Preparation method of intelligent molecular switch

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Experimental program
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Effect test

Embodiment 1

[0025] (1) Electrodeposition experiments were carried out with a DC power supply. Use deionized water to prepare 0.1mol / L NiCl 2 solution, connect the positive electrode of the DC power supply to the titanium plate, the negative electrode to the nickel foil, and put in a well-proportioned NiCl 2 in solution.

[0026] (2) Step (1) The experiment was carried out under a constant voltage of 10V, and after 90 minutes of reaction, nickel-titanium nano-catalyst powder was obtained.

[0027] (3) Put the nickel-titanium nano-catalyst powder of step (2) into a quartz boat, and place it in an argon gas-protected tube furnace, and heat it up to 900°C.

[0028] (4) At 900° C., push ethanol into an argon-protected tube furnace and react for 40 minutes to obtain a NiTi / C nanomolecule switch.

[0029] (5) The shape memory deformation of NiTi / C nanomolecular switches at the nanoscale was characterized by in situ heated transmission electron microscopy.

[0030] figure 2 TEM pictures of ...

Embodiment 2

[0032] (1) Electrodeposition experiments were carried out with a DC power supply. Using deionized water to prepare 0.5mol / L CuCl 2 , ZnCl 2 and AlCl 3 Mix the solution, connect the positive electrode of the DC power supply to the copper plate, the negative electrode to the zinc foil, and put in the well-proportioned CuCl 2 , ZnCl 2 and AlCl 3 in the mixed solution.

[0033] (2) Step (1) The experiment was carried out at a constant voltage of 20V, and after 60 minutes of reaction, copper-zinc-aluminum nano-catalyst powder was obtained.

[0034] (3) The copper-zinc-aluminum nano-catalyst powder and the camphor powder of step (2) are mixed and put into a quartz boat, and placed in an argon gas-protected tube furnace, and the temperature is raised to 700°C.

[0035] (4) After 60 minutes of reaction at 700° C., the CuZnAl / C nano-molecular switch was obtained.

[0036] (5) Characterization of shape memory deformation of CuZnAl / C nanomolecular switches at nanoscale by in situ ...

Embodiment 3

[0039] (1) Electrodeposition experiments were carried out with a DC power supply. Use deionized water to prepare 1.0mol / L H 2 PtCl 6 solution, connect the positive electrode of the DC power supply to the iron plate, the negative electrode to the titanium foil, and put in a well-proportioned H 2 PtCl 6 in solution.

[0040] (2) Step (1) The experiment was carried out at a constant voltage of 15V, and after 90 minutes of reaction, the iron-platinum nano-catalyst powder was obtained.

[0041] (3) Put the iron-platinum nano-catalyst powder of step (2) into a quartz boat, and place it in an argon gas-protected tube furnace, and heat it up to 850°C.

[0042] (4) Passing methane into a tube furnace protected by argon at 850° C., and after reacting for 30 minutes, the FePt / C nano-molecular switch is obtained.

[0043] (5) Characterization of shape memory deformation of FePt / C nanomolecular switches at nanoscale by in situ heated transmission electron microscopy.

[0044] Figur...

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Abstract

The invention relates to a preparation method of a high-melting-point intelligent molecular switch. The preparation method of the intelligent molecular switch comprises the following steps: obtaining nano catalyst powder of NiTi, CuZnAl, FePt and the like through an electro-deposition process; under the argon protection condition of 700-900 DEG C, nanometer molecular switches of NiTi / C, CuZnAl / C, FePt / C and the like are synthesized by using carbon sources such as ethanol, methane, camphor and the like through a chemical vapor deposition method. Compared with the conventional method for realizing the opening and closing of the molecular switch through illumination, pH value regulation and control and the like, the method for realizing the opening and closing of the molecular switch by utilizing the temperature signal has the advantages of high response speed, high controllability, low preparation cost and the like, and can meet the large-scale industrial commercial application of the molecular switch and the nano robot thereof in the future.

Description

technical field [0001] The invention belongs to the technical field of molecular switches and nano-robots, and in particular relates to a preparation method of an intelligent molecular switch. Background technique [0002] Molecular switches and nanorobots are attracting extensive attention. Molecular switches generally refer to supramolecular systems with "on / off" functions at the nanoscale, and are the basic structural unit for designing nanorobots. Nanostructures such as quasirotaxane molecular machines and molecular elevators based on the design idea of ​​molecular switches have good application prospects in the fields of catalysis, optics, and medicine. However, most of these research results are that the opening and closing of molecular switches are realized by means of illumination, pH value regulation, etc., and there are few researches on using temperature signals to realize the opening and closing of molecular switches. [0003] Shape memory alloy is a smart mate...

Claims

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Application Information

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IPC IPC(8): C25C1/08C25C1/12C25C1/16C25C1/20C25C1/22C01B32/15
CPCC25C1/08C25C1/12C25C1/16C25C1/22C25C1/20C01B32/15
Inventor 赵红张勇张旭涛
Owner DALIAN JIAOTONG UNIVERSITY