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Carbon material modified by metal nanoparticles and preparation method thereof

A technology of metal nanoparticles and carbon materials, applied in the direction of metal material coating technology, nanotechnology, nanotechnology, etc., can solve the problems of difficult to achieve the expected effect, damage the structure, etc., achieve weak binding force, controllable size, and easy operation controllable effect

Active Publication Date: 2016-06-08
江苏镭明新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the ion implantation technology has the above-mentioned series of advantages, because its operation requires processes such as vacuum pumping and high-energy ion beam incidence, and the direct implantation of carbon materials under such high-intensity conditions will seriously damage its structure during the ion implantation process, so Generally difficult to achieve expected results

Method used

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  • Carbon material modified by metal nanoparticles and preparation method thereof
  • Carbon material modified by metal nanoparticles and preparation method thereof

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Effect test

Embodiment 1

[0027] A method for preparing a carbon material modified by metal nanoparticles. The specific steps are: grinding graphite into powder, ultrasonically reacting for 8 hours under mixed acid conditions, and preparing a graphite suspension with a concentration of 0.1-0.2 mg / mL with deionized water , and load the graphite suspension on a silicon wafer, and dry it at 50-60°C. Place the silicon wafer loaded with graphite on the sample stage of the ion implanter, and evacuate to 1×10 -2 ~1×10 -3 Pa, using gold as the target material, the accelerating voltage of ion implantation is 1~5KV, and the ion implantation dose is 1×10 15 ~1×10 16 ions / cm 2 , prepared gold nanoparticles modified graphite material.

Embodiment 2

[0029] A method for preparing a metal nanoparticle-modified carbon material, the specific steps of which are as follows: glassy carbon is subjected to ultrasonic reaction for 10 hours under mixed acid conditions, a glassy carbon suspension with a concentration of 0.4-0.5 mg / mL is prepared with deionized water, and Load the glassy carbon suspension on a glass slide and dry it at 50-60°C. Place the glass slide loaded with glassy carbon on the sample stage of the ion implanter, and evacuate to 1×10 -3 ~1×10 -4 Pa, silver is used as the target material, the accelerating voltage of ion implantation is 5~20KV, and the ion implantation dose is 1×10 16 ~1×10 17 ions / cm 2 , the glassy carbon material modified with silver nanoparticles was prepared.

Embodiment 3

[0031] A method for preparing a carbon material modified by metal nanoparticles, the specific steps are: subject carbon powder to ultrasonic reaction for 7 hours under mixed acid conditions, prepare a suspension of carbon powder with a concentration of 0.5-0.6 mg / mL with deionized water, and Load the carbon powder suspension on the silicon wafer and dry it at 50~60°C. Place the silicon wafer loaded with carbon powder on the sample stage of the ion implanter, and evacuate to 1×10 -4 ~1×10 -5 Pa, platinum is used as the target material, the accelerating voltage of ion implantation is 20~50KV, and the ion implantation dose is 1×10 17 ~1×10 18 ions / cm 2 , and the carbon powder material modified with platinum nanoparticles was prepared.

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Abstract

The invention provides a method for preparing a carbon material modified by metal nanoparticles. Specifically, the substrate loaded with the carbon material is placed on the sample stage of an ion implanter, and the vacuum is evacuated to 1×10-2~1×10- 5Pa, the metal used for modification is used as the target material, the accelerating voltage of ion implantation is 1~100KV, and the ion implantation dose is 1×1015~1×1019ions / cm2, and the carbon material modified by metal nanoparticles is prepared. The preparation process of the present invention is simple and reliable, and the metal nanoparticle-modified carbon material prepared by ion implantation is easy and controllable to operate; the metal nanoparticle and the carbon material are directly combined without intermediary molecules, and the stability is good; the metal nanoparticle prepared by ion implantation The metal nanoparticles in the modified carbon material do not have agglomeration phenomenon in the carbon material, and the size is controllable; the structure of the carbon material remains intact during the ion implantation process.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a carbon material modified by metal nanoparticles and a preparation method thereof. Background technique [0002] Carbon is one of the most closely related and important elements in nature. It has many forms of existence, and new carbon materials are constantly being discovered and artificially produced. Currently, common carbon materials include graphite, glassy carbon, and carbon powder. , carbon fibers, fullerenes, carbon nanotubes and graphene, etc. Carbon materials have played an important role in industrial production and social life. For example, graphite electrodes are widely used in electrolytic aluminum industry and battery industry. Carbon fiber reinforced composite materials are widely used in aerospace, automotive industry and high-performance equipment. Carbon nanotubes And graphene has become the focus of scientific research in the past two...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/48C23C14/18B22F1/00B82Y40/00B82Y30/00
Inventor 梁峰陈荣生倪红卫刘颖竹詹玮婷
Owner 江苏镭明新材料科技有限公司
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