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Preparation method for novel nano-silver wire

A nano-silver wire, a new type of technology, applied in the field of preparation of new nano-silver wires, can solve the problems of high cost, complicated process, and inability to realize effective control of nanostructures, and achieve the effects of convenient operation, simplified process, and cost-saving preparation

Inactive Publication Date: 2014-09-03
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a novel preparation method of nano-silver wires, which can effectively solve the problems existing in the prior art, especially the problems of complex process, high cost and inability to realize effective control of nanostructures

Method used

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  • Preparation method for novel nano-silver wire
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  • Preparation method for novel nano-silver wire

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1 of the present invention: a kind of preparation method of novel nano-silver wire, comprises the following steps: take silver nitrate, dissolve in distilled water, obtain the A liquid that concentration is 0.5mol / L; Take dodecylamine, dissolve in ethanol In the solution, liquid B with a concentration of 0.5mol / L was obtained; liquid A and liquid B were transferred to the reactor through a syringe pump and mixed at a mixing rate of 1ml / min, and stirred with a glass rod until completely dissolved; Take 1mL of ammonia water and add it to 88mL of distilled water as a complexing agent, add the complexing agent into the mixed solution of A liquid and B liquid, stir evenly with a glass rod, let it stand for stratification, and obtain C liquid; take C liquid as the electrolytic solution Insert the anode into the water layer of the electrolyte, and insert the cathode into the oil layer of the electrolyte; slowly increase the voltage from 0V, when it increases to 31.5V...

Embodiment 2

[0036] Embodiment 2: a kind of preparation method of novel nano-silver wire, comprises the following steps: take by weighing 1.02g silver nitrate, be dissolved in the dehydrated alcohol of 10ml, obtain A liquid (concentration is 6mol / L); Take by weighing 5g twelve Alkylamine was dissolved in 30 mL of ethanol solution to obtain liquid B (concentration: 0.9 mol / L); liquid A and liquid B were transferred to the reactor through a burette and mixed at a mixing rate of 100 ml / min, and stirred with a glass rod until complete Dissolve; pipette 1mL of ethylenediamine into 80mL of distilled water as a complexing agent with a pipette gun, add the complexing agent into the mixed solution of liquid A and liquid B, stir evenly with a glass rod, let stand to separate layers, Obtain liquid C; take liquid C as the electrolyte, insert the anode into the water layer of the electrolyte, and insert the cathode into the oil layer of the electrolyte; perform an electrolytic reaction for 1 to 5 minute...

Embodiment 3

[0037] Embodiment 3: a kind of preparation method of novel nano silver wire, comprises the following steps: take by weighing 2.10g silver nitrate, be dissolved in the dehydrated alcohol of 30ml, obtain A liquid (concentration is 0.4mol / L); Weigh 10g ten Dialkylamine was dissolved in 50 mL of ethanol solution to obtain liquid B (concentration: 1.1 mol / L); liquid A and liquid B were transferred to the reactor through a needle and mixed at a mixing rate of 0.1 μl / min, and stirred with a glass rod until completely dissolved; pipette 1ml of salicylaldehyde into 20mL of distilled water as a complexing agent, add the complexing agent into the mixed solution of A liquid and B liquid, stir evenly with a glass rod, and let stand to separate layer to obtain liquid C; take liquid C as the electrolyte, insert the anode into the water layer of the electrolyte, and insert the cathode into the oil layer of the electrolyte; electrolyze for 5 minutes under the conditions of a voltage of 25V and ...

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Abstract

The invention discloses a preparation method for a novel nano-silver wire. The preparation method comprises the following steps: taking a sliver salt or silver amide complex, adding a solvent for dissolving to obtain liquor A; taking organic substances, adding the solvent for dissolving to obtain liquor B; mixing the liquor A with the liquor B, stirring until dissolving completely; adding a complexing agent, uniformly stirring, stewing and layering to obtain liquor C; taking the liquor C as an electrolyte, inserting an anode to a water layer of the electrolyte, inserting a cathode to an oil layer of the electrolyte, carrying out electrolytic reaction for 1-30 minutes under the condition that voltage is 1-50V; flushing the reacted cathode polar plate by distilled water, naturally drying at the room temperature to obtain the nano-silver wire. The thickness and slenderness ratio of the nano-silver wire can be conveniently controlled by electric fields, so that the controllable growth of a nano structure is realized; morphology of the generated nano-sliver wire is controllable by regulating the current density, voltage and reaction time, and the novel nano-silver wire can be synthesized by a nano-silver wire with the diameter of 1-50nm and a nano rod. The preparation process is simple and low in cost, and efficiency for synthesizing the nano-sliver wire and the nano rod is higher.

Description

technical field [0001] The invention relates to a novel preparation technology of a nano-noble metal structure, in particular to a preparation method of a novel nano-silver wire. Background technique [0002] The particle size of nanoparticles is extremely small, but the specific surface area is extremely large, so they exhibit new optical, electrical, magnetic and chemical properties. At present, new materials composed of nanoparticles have been widely used in the fields of catalysis, luminescent materials, magnetic materials, semiconductor materials and fine ceramic materials. As an important part of noble metal nanomaterials, nano-silver not only has the surface effect, quantum size effect, volume effect and macroscopic quantum tunneling effect of general metal nanomaterials, but also has a special surface plasmon resonance effect. It has been widely used in the fields of catalysis, antibacterial, optoelectronics and superconductivity. [0003] Because silver has the be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C5/02B82Y40/00
Inventor 郭瑞齐建全王冠达董晓宇
Owner NORTHEASTERN UNIV
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