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Preparation method of graphene oxide-supported silver-palladium composite material

A composite material and graphene technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of complex preparation methods and high energy consumption, and achieve the effects of high phase purity, uniform dispersion and uniform morphology

Active Publication Date: 2019-04-09
镇江苏海电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of graphene oxide-loaded silver-palladium composite material, to solve the problems of complex preparation methods and high energy consumption in the prior art

Method used

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  • Preparation method of graphene oxide-supported silver-palladium composite material
  • Preparation method of graphene oxide-supported silver-palladium composite material
  • Preparation method of graphene oxide-supported silver-palladium composite material

Examples

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Embodiment 1

[0031] In the present embodiment, graphene oxide loaded silver-palladium composite material is realized according to the following steps:

[0032] (1) Weigh 1g of tetrachloroalloy acid, 1g of palladium nitrate and 1g of graphene oxide, dissolve them in 50ml of ethylene glycol in the order of tetrachloroalloy acid, palladium nitrate and graphene oxide, and then transfer the mixed solution to a special beaker placed in an ultrasonic instrument for ultrasonic treatment, with an ultrasonic power of 50 Hz and an ultrasonic time of 15 min, to obtain a mixed solution;

[0033] (2) Transfer the mixed solution obtained in step (1) to a sealed beaker, and then place the beaker in a water bath for water bath treatment. The temperature of the water bath treatment is 60 ° C, the reaction time is 3 hours, and magnetic stirring is maintained during the treatment process. , the magnetic stirring speed is 250rpm;

[0034] (3) The hydrothermal reaction product obtained in step (2) is subjected...

Embodiment 2

[0037] In this embodiment, the graphene oxide-loaded silver-palladium composite material is realized by the following steps:

[0038] (1) Weigh 1g palladium nitrate, 1.1g tetrachloroalloy acid and 1.2g graphene oxide, dissolve them in 45ml ethanol in the order of palladium nitrate, tetrachloroalloy acid and graphene oxide, then transfer the mixed solution to a special beaker placed in an ultrasonic instrument for ultrasonic treatment, the ultrasonic power is 50 Hz, and the ultrasonic time is 15 min, that is, the prepared mixed solution is dissolved in the solvent;

[0039] (2) Transfer the mixed solution obtained in step (1) to a sealed beaker, and then place the beaker in a water bath box for water bath treatment. The water bath treatment temperature is 70 ° C, the reaction time is 10 h, and magnetic stirring is maintained during the treatment process. , the magnetic stirring speed is 300rpm;

[0040] (3) The hydrothermal reaction product obtained in step (2) is centrifugall...

Embodiment 3

[0043] In this embodiment, the graphene oxide-loaded silver-palladium composite material is realized by the following steps:

[0044] (1) Take by weighing 1g palladium nitrate, 4g tetrachloroalloy acid and 8g graphene oxide, dissolve in the order of palladium nitrate, tetrachloroalloy acid and graphene oxide in 100ml ethanol, then transfer the mixed solution to a special beaker, Put it in an ultrasonic instrument for ultrasonic treatment, the ultrasonic power is 50Hz, and the ultrasonic time is 15min-25min, and the mixed solution is obtained;

[0045] (2) Transfer the mixed solution obtained in step (1) to a sealed beaker, and then place the beaker in a water bath for water bath treatment. The temperature of the water bath treatment is 80 ° C, and the reaction time is 14 hours. During the treatment, magnetic stirring is always maintained , the magnetic stirring speed is 400rpm;

[0046] (3) The hydrothermal reaction product obtained in step (2) is subjected to centrifugal cle...

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Abstract

The invention relates to the technical field of graphene composite materials, in particular to a preparation method of a graphene oxide-supported silver-palladium composite material. The preparation method comprises the following steps: dissolving graphene oxide (GO), tetrachloroalloy acid (HAuCl4) and palladium nitrate (PbNO3) in a solvent according to a certain order and ratio, wherein the massratio of the graphene oxide to the tetrachloroalloy acid to the palladium nitrate is 1:1:1-8:4-1, placing the mixed solution in a water bath for water bath treatment, then centrifuging, washing and drying a reaction product subjected to the water bath treatment. The preparation method has the beneficial effects that the graphene oxide-supported silver-palladium composite material is prepared by using the method which is environmentally-friendly, simple in preparation process and low in cost, and easily realizes the commercial production.

Description

technical field [0001] The invention relates to the technical field of graphene composite materials, and specifically relates to a preparation method of graphene oxide-loaded silver-palladium composite materials. Background technique [0002] Graphene is a two-dimensional carbon nanomaterial composed of carbon atoms. It has excellent physical properties and has broad application prospects in materials science, information science, energy, and biomedicine. It is considered to be a future revolutionary s material. Graphene is also one of the materials with the highest strength known, and it also has good toughness, so it is the first choice for the preparation of high-strength new materials. Common graphene composites include: graphene-nanoparticle composites, graphene-polymer composites, graphene-carbon-based composites, and graphene-metal-based composites. Graphene has ultra-high thermal conductivity. Adding it to the metal matrix can improve the mechanical properties of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/194
CPCC01B32/194
Inventor 张超王匀绕鹏
Owner 镇江苏海电力科技有限公司
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