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Solvent thermal method for preparing copper nanowire

A solvothermal method and copper nanowire technology, which is applied in the field of metal nanowire preparation, can solve the problems that copper nanowires have not been seen in literature and patent public reports, and achieve the effects of low cost, simple operation, and low equipment requirements

Active Publication Date: 2015-12-23
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This solvothermal method for preparing copper nanowires has not been reported in literature and patents so far.

Method used

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  • Solvent thermal method for preparing copper nanowire
  • Solvent thermal method for preparing copper nanowire
  • Solvent thermal method for preparing copper nanowire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Mix copper formate tetrahydrate (9.04g, 0.04mol) and n-octylamine (10.32g, 0.08mol), and stir mechanically at 35°C and 100 rpm for 1h to obtain copper formate-n-octylamine complex Material 19.36g;

[0030] (2) Add oleylamine (5.35g, 0.02mol) and oleic acid (1.41g, 0.005mol) to the copper formate-n-octylamine complex (19.36g, 0.04mol) obtained in step (1), and add paraffin (12g), at 75 DEG C, stirring continuously for 1 hour at a stirring speed of 100 rpm to obtain a reaction mixture;

[0031] (3) Inject 38.12 g of the reaction mixture obtained in step (2) into a 50 ml three-necked distillation flask, and heat the reaction at 110° C. for 1 h under nitrogen protection. After the distillation flask is naturally cooled to room temperature, add n-hexane (480 mL ), after ultrasonic dispersion for 5 minutes, centrifuge at a centrifugal rate of 12,000 rpm for 10 minutes, and dry to obtain 2.56 g of copper nanowires.

[0032] figure 2 It is the transmission electron micr...

Embodiment 2

[0034] (1) Mix copper formate tetrahydrate (4.52g, 0.02mol) and n-octylamine (5.16g, 0.04mol), and stir mechanically at 35°C and 140 rpm for 1h to obtain copper formate-n-octylamine complex Material 9.68g;

[0035] (2) Add oleylamine (5.35g, 0.02mol) and oleic acid (1.41g, 0.005mol) to the copper formate-n-octylamine complex (9.68g, 0.01mol) obtained in step (1), and add paraffin (12g), at 75 DEG C, stirring continuously for 1 hour at a stirring speed of 100 rpm to obtain a reaction mixture;

[0036] (3) Inject 28.44 g of the reaction mixture obtained in step (2) into a 50 ml three-necked distillation flask. Under nitrogen protection, heat the reaction at 150° C. for 1 h. After the distillation flask is naturally cooled to room temperature, add n-hexane (480 mL ), after ultrasonic dispersion for 5 minutes, centrifuge at a centrifugal rate of 12,000 rpm for 10 minutes, and dry to obtain 1.28 g of copper nanowires.

[0037] image 3 It is a transmission electron microscope ph...

Embodiment 3

[0039] (1) Mix copper formate tetrahydrate (4.52g, 0.02mol) and n-octylamine (5.16g, 0.04mol), and stir mechanically at 35°C and 140 rpm for 1h to obtain copper formate-n-octylamine complex Material 9.68g;

[0040](2) Add oleylamine (5.35g, 0.02mol) and oleic acid (1.41g, 0.005mol) to the copper formate-n-octylamine complex (9.68g, 0.01mol) obtained in step (1), and add paraffin (12g), at 75 DEG C, stirring continuously for 1 hour at a stirring speed of 100 rpm to obtain a reaction mixture;

[0041] (3) 28.44 g of the reaction mixture obtained in step (2) is injected into a 50 ml three-necked distillation flask, under nitrogen protection, the reaction was heated at 150° C. for 30 minutes, and the distillation flask was naturally cooled to room temperature, and normal hexane ( 480 mL), after ultrasonic dispersion for 5 min, centrifuge at a centrifugal rate of 12000 rpm for 10 min, and dry to obtain 1.28 g of the product copper nanowire.

[0042] Figure 4 It is the transmiss...

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Abstract

The invention provides a solvent thermal method for preparing a copper nanowire. The method comprises the steps that copper formate and n-octylamine are mixed and are stirred for 1-2 hours at the temperature of 35-45 DEG C and the stirring speed of 100-200 rpm, and a copper formate and n-octylamine complex is obtained; the copper formate and n-octylamine complex is mixed with paraffin, oleic acid and oleylamine, and the mixture is continuously stirred for 0.5-1.5 hours at the temperature of 60-80 DEG C and the stirring speed of 100-200 rpm, and a reaction mixture is obtained; the reaction mixture is added into a reaction container, reacts for 0.25-3 hours at the temperature of 110-150 DEG C under nitrogen protection, and then is naturally cooled to be at the room temperature, n-hexane is added into the reaction mixture, ultrasonic dispersion by ultrasonic wave is conducted for 3-5 min, centrifugation is conducted for 3-10 min with the centrifugal rate of 10000-15000 rpm, the mixture is dried and then the copper nanowire is obtained. According to the method, the preparation process is environmentally friendly, the requirement for equipment is low, operation is easy and cost is low.

Description

(1) Technical field [0001] The invention relates to a green and environment-friendly solvothermal method for preparing copper nanowires, which belongs to the field of preparation of metal nanowires. (2) Background technology [0002] Due to the large aspect ratio and large material specific surface area, metal nanowires exhibit high catalytic activity, high transport characteristics, high sensitivity, current response and stability, and are used in fuel cells. , biosensors, petrochemical and other fields have very broad application prospects. Copper metal has good thermal and electrical conductivity, and is the most widely used material for connecting wires among metals. It has the characteristics of large storage capacity and low price. Copper nanowires are expected to be widely used in the field of micro-nano electronics technology in the future. Therefore, more and more people pay attention to the preparation and performance research of copper nanowires. [0003] There ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24
Inventor 徐斌曹小海王博诣楼白杨
Owner ZHEJIANG UNIV OF TECH
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