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Liquid phase method for synthesizing one-dimensional super long Nano line of metal copper

A liquid phase synthesis, copper nanowire technology, applied in chemical instruments and methods, single crystal growth, crystal growth and other directions, can solve the problems of harsh implementation conditions, complex processes, high cost, and achieve cheap raw materials, good repeatability, and cost. low effect

Active Publication Date: 2006-02-01
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the disadvantages of existing methods for synthesizing metal nanowires, such as high cost, harsh implementation conditions, complicated process or low yield; thereby providing a method with low raw material cost, simple process and mild reaction conditions, And the prepared one-dimensional, ultra-long copper nanowire size controllable, high-purity liquid phase large-scale synthesis method of metallic copper nanowires

Method used

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  • Liquid phase method for synthesizing one-dimensional super long Nano line of metal copper
  • Liquid phase method for synthesizing one-dimensional super long Nano line of metal copper
  • Liquid phase method for synthesizing one-dimensional super long Nano line of metal copper

Examples

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Effect test

Embodiment 1

[0024] Embodiment 1: Weigh the CuCl of 0.001mol 2 2H 2 O in a stirred reactor, add 100ml distilled water, stir to dissolve, then add 0.001mol octadecylamine (C 18 h 37 NH 2 ), stirred well until a uniform blue emulsion was formed without undissolved octadecylamine. Transfer the obtained liquid into a stainless steel pressure melting bomb with a filling degree of 85%, seal it tightly, raise the temperature to 120°C and keep it for 72 hours, then naturally cool to room temperature, collect the obtained solid product after centrifugation, and use absolute ethanol, n-hexane And washed with deionized water for more than three times, at room temperature, 10 -3 Vacuum drying under atmospheric pressure for 1 hour, and vacuum drying, the product has an average diameter of 50 nm and a length of up to 10 nm. -3 meters of copper nanowires.

Embodiment 2

[0025] Embodiment 2: Weigh the CuCl of 0.001mol 2 2H 2 O in a stirred reactor, add 75ml distilled water, stir to dissolve, then add 0.002mol octadecylamine (C 18 h 37 NH 2 ), stirred well until a uniform blue emulsion was formed without undissolved octadecylamine. Transfer the obtained liquid into a stainless steel pressure melting bomb with a filling degree of 80%, seal it tightly, raise the temperature to 160°C and keep it for 50 hours, then naturally cool to room temperature, collect the obtained product after centrifugation, and use absolute ethanol, n-hexane and Wash with deionized water more than three times, at room temperature, 10 -3 Vacuum drying under atmospheric pressure for 4 hours, vacuum drying, the average diameter of the product is 150nm, the length can reach 10 -2 meters of copper nanowires.

Embodiment 3

[0026] Embodiment 3: Weigh the CuCl of 0.002mol 2 2H 2 O in a stirred reactor, add 75ml distilled water, stir to dissolve, then add 0.004mol octadecylamine (C 18 h 37 NH 2), stirred well until a uniform blue emulsion was formed without undissolved octadecylamine. Transfer the obtained liquid into a stainless steel pressure melting bomb with a filling degree of 65%, seal it tightly, raise the temperature to 200°C and keep it for 20 hours, then naturally cool to room temperature, collect the obtained product after centrifugation, and use absolute ethanol, n-hexane and Wash with deionized water more than three times, at room temperature, 10 -3 Vacuum drying under atmospheric pressure for 3 hours, and vacuum drying, the product has an average diameter of 10 nm and a length of up to 10 nm. -2 meters of copper nanowires.

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Abstract

A process for liquid-phase synthesis of ultra-long one-dimension copper nanowire includes such steps as proportionally mixing 2-valence copper salt, purified water and aliphatic alkylamine, stirring to become emulsion, filling it in pressure container, hydrothermal reaction at 100-200 deg.C for 4-72 hr, washing multiple times and filtering. The resultant copper nanowire has 10-500 nm in diameter and 10 to the power 6 in its length / diameter ratio.

Description

technical field [0001] The invention belongs to a preparation method of nanometer materials, in particular to a method for large-scale synthesis of one-dimensional ultra-long metal copper nanowires in liquid phase. Background technique [0002] Due to its unique physical properties and quantum size effect, metal nanowires are expected to play an important role in the field of nanotechnology such as: nanoelectronics, optoelectronics, and magnetic devices. (such as: quantum conduction and small size effect) and the relationship between the intrinsic structure, dimension and size of the material have established a possible model. Therefore, the research on the synthesis, characterization and performance of metal nanowires has attracted much attention in the past decade. Because the metal copper of the body material has good thermal and electrical conductivity, it is also the most used material for connecting wires among all metals. Copper nanowires may be widely used in the f...

Claims

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Application Information

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IPC IPC(8): C30B7/10C30B29/62B22F9/24
Inventor 石玉李泓黄学杰陈立泉
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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