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Method for preparing multifunctional core-shell nano-material by using alloy to wrap copper nanowires

A core-shell nanomaterial, nanowire technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of difficult large-scale application, complex process, high cost, etc. The effect of good reproducibility, good repeatability and simple operation

Active Publication Date: 2015-10-07
XIAMEN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the wrapping experiment is too cumbersome, different experimental methods are required to wrap different metals, and the electroplating method they used in the experiment of wrapping Sn and Zn is expensive and complicated, and it is difficult to apply on a large scale

Method used

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  • Method for preparing multifunctional core-shell nano-material by using alloy to wrap copper nanowires
  • Method for preparing multifunctional core-shell nano-material by using alloy to wrap copper nanowires
  • Method for preparing multifunctional core-shell nano-material by using alloy to wrap copper nanowires

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Experimental program
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Embodiment Construction

[0023] Take the nickel shell wrapped on the surface of Cu nanowires as an example.

[0024] 1. First, the preparation before the reaction and the stoichiometric ratio of Cu nanowires and nickel acetylacetonate.

[0025] 1) Determine the molar mass of the Cu nanowires, put the appropriate amount of Cu nanowires dispersed in n-hexane solution into a centrifuge tube with a capacity of 50ml, and put the centrifuge tube into the centrifuge for centrifugation. The parameters of the centrifuge are: The rotating speed is 9000r / min, and the centrifugation time is 5min.

[0026] 2) Pour off the n-hexane solution in the upper layer of the centrifuge tube after centrifugation, and keep the Cu nanowire solid deposited at the bottom of the centrifuge tube. In order to reduce the error, the centrifuge tube is generally placed for a short period of time, so that the residual n-hexane can be volatilized more completely, so as to obtain more pure Cu nanowires.

[0027] 3) Use an analytical ba...

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Abstract

The invention discloses a method for preparing a multifunctional core-shell nano-material by using an alloy to wrap copper nanowires and relates to core-shell nano-materials. The Cu nanowires and metal organic salt are mixed and dissolved in an octadecene amine solution; a reaction vessel is heated, in a first stage, after the temperature of the solution in the reaction vessel is heated to 80-120 DEG C, N2 is pumped in, and the solution is heated for 10-20 min at a constant temperature; in a second stage, when the metal organic salt is acetylacetone nickel or acetylacetone zinc, the reaction temperature is 180-210 DEG C; when the metal organic salt is acetylacetone vanadium or acetylacetone titanium, the reaction temperature is 140-170 DEG C; when the reaction temperature reaches from 80-120 DEG C to a preset temperature, the solution is heated for 30-60 min at the constant temperature, and the reaction is finished; after the reaction solution is cooled, an n-hexane solution is added, ultrasound treatment is performed, the solution is transferred into a centrifugal tube to be subjected to centrifugation, the nanowire solid is deposited on the bottom of the centrifugal tube, and the Cu nanowires after being wrapped are obtained after the upper layer solution in the centrifugal tube is poured away.

Description

technical field [0001] The invention relates to core-shell nanomaterials, in particular to a method for preparing multifunctional core-shell nanomaterials by wrapping copper nanowires with alloys. Background technique [0002] Today, with the vigorous development of optoelectronic device technology, transparent electrodes are widely used in optoelectronic devices such as flat-panel TVs, e-readers, smart phones, touch screens, organic light-emitting diodes, and solar cells. The so-called transparent electrode is a thin film that can conduct current without hindering the passage of light. The traditional transparent electrode materials are generally ITO and AZO, etc. With the rapid development of optoelectronics, the demand for transparent electrodes is also increasing day by day. The contradictions of traditional electrodes due to their complicated manufacturing process, shortage of resources and high price are becoming more and more prominent. In addition, due to the rapid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/24B22F9/06B82Y40/00B82Y30/00
Inventor 蔡端俊王华春林娜徐红梅伍臣平马吉郭惠章康俊勇
Owner XIAMEN UNIV
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