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Copper iridium nanowire and synthetic method thereof

A synthesis method and nanowire technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of high price and immature iridium copper alloy nanowire synthesis method.

Active Publication Date: 2018-11-13
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, iridium is expensive, and forming an alloy with other metals is an effective way to increase the utilization of iridium
However, there is currently no mature synthesis method for iridium-copper alloy nanowires.

Method used

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  • Copper iridium nanowire and synthetic method thereof
  • Copper iridium nanowire and synthetic method thereof
  • Copper iridium nanowire and synthetic method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A copper-iridium nanowire, the particle structure is a wire-like structure copper-iridium alloy with a diameter of 2-5nm.

[0033] The synthetic method of above-mentioned copper iridium nanowire, comprises the following steps:

[0034] (1) Weigh 5 g of oleylamine, 10 mg of carbonyl tris(triphenylphosphine) iridium (I), 10 mg of copper acetylacetonate, and 10 mg of hexadecyltrimethylammonium chloride into the same reactor, stir and mix well ;

[0035] (2) Raise the temperature of the reaction system to 85°C, keep the temperature constant, evacuate and degas, keep it in a vacuum state for 25 minutes, then pass in argon, then continue to heat up the system to 245°C, keep the temperature constant, and react for 55 minutes , to obtain a black powdery product. After the system was cooled, the product was separated, centrifuged at 6000r / min for 15min, washed three times with a mixture of absolute ethanol and toluene, and dried at 80°C for 12h.

Embodiment 2

[0037] A copper-iridium nanowire, the particle structure is a wire-like structure copper-iridium alloy with a diameter of 2-5nm.

[0038] The synthetic method of above-mentioned copper iridium nanowire, comprises the following steps:

[0039] (1) Weigh 50g of oleylamine, 100mg of carbonyl tris(triphenylphosphine)iridium(I) hydride, 100mg of copper acetylacetonate, and 400mg of cetyltrimethylammonium chloride into the same reactor, stir and mix well ;

[0040] (2) Raise the temperature of the reaction system to 95°C, keep the temperature constant, vacuumize and degas, keep it in a vacuum state for 35 minutes, then pass in argon, then continue to heat up the system to 255°C, keep the temperature constant, and react for 65 minutes , to obtain a black powdery product. After cooling the system, the product was separated, centrifuged at 12000r / min for 6min, washed 10 times with a mixture of absolute ethanol and toluene, and dried at 120°C for 2h.

Embodiment 3

[0042] A copper-iridium nanowire, the particle structure is a wire-like structure copper-iridium alloy with a diameter of 2-5nm.

[0043] The synthetic method of above-mentioned copper iridium nanowire, comprises the following steps:

[0044] (1) Weigh 15g of oleylamine, 50mg of carbonyltris(triphenylphosphine)iridium(I) hydride, 18mg of copper acetylacetonate, and 100mg of cetyltrimethylammonium chloride into the same reactor, stir and mix well ;

[0045] (2) Raise the temperature of the reaction system to 90°C, keep the temperature constant, vacuumize and degas, keep it in a vacuum state for 30 minutes, then pass in argon, then continue to heat up the system to 250°C, keep the temperature constant, and react for 60 minutes , to obtain a black powdery product. After the system was cooled, the product was separated, centrifuged at 7000r / min for 10min, washed 5 times with a mixture of absolute ethanol and toluene, and dried at 100°C for 10h.

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Abstract

The invention provides a copper iridium nanowire and a synthetic method thereof, and relates to the field of synthesis of nano-scale inorganic metal materials. The copper iridium nanowire is of a lineage structure with the diameter of 2-5 micron on a particle structure. The synthetic method comprises the following steps that oleylamine, carbonyl tris (triphenylphosphine) hydrogenated iridium (I),acetylacetone copper and cetyl trimethyl ammonium chloride are weighed to be put into the same reactor, and uniformly stirring and mixing are carried out; the reaction system is heated at a first time; vacuumizing and degassing are carried out, a primary reaction is carried out in a vacuum state, then argon is introduced, meanwhile, the system is rapidly heated for a second time, and a black powdery product is obtained after a secondary reaction is carried out for a period of time. The copper iridium nanowire and the synthetic method thereof has the beneficial effects that the atmosphere, thefactors of the temperature, the time and the like of the reaction system in the synthesis process are further controlled by selecting specific materials, the copper iridium nanowire which is the linear structure with the synthesis diameter between 2-5 micron is realized, so that the research blank in the direction of the copper iridium nanowires is filled up.

Description

technical field [0001] The invention relates to the field of synthesis of nanoscale inorganic metal materials, in particular to a copper-iridium nanowire and a synthesis method thereof. Background technique [0002] One-dimensional metallic nanomaterials occupy an important place in modern nanoscience and nanotechnology because of their unique optical, electrical, thermodynamic, mechanical and catalytic properties. Especially in the field of catalysis, one-dimensional nano-metal materials have larger surface area and more active catalytic sites, and the one-dimensional nano-materials show better electrical conductivity after being interconnected. [0003] Iridium nanomaterials exhibit high activity, high selectivity and high stability in organic synthesis, oxidation of nitrogenous substances, electrocatalytic water splitting and other reactions. Iridium nanocatalytic materials can be used in petrochemical, aerospace, automobile exhaust processing and new energy technologies...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F9/24B01J23/89B01J35/06B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00B01J23/8926B22F9/24B22F1/0547B01J35/58
Inventor 杨涛殷丽斯丁欣然
Owner HUAIHAI INST OF TECH
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