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Preparation method of phosphorus-doped graphite optical lens

An optical lens and phosphorus-doped technology, which is applied in the field of graphite materials, can solve problems that do not involve phosphorus-doped graphite carbon, etc., and achieve the effects of short time, strong operation controllability, and simple preparation method

Inactive Publication Date: 2012-12-12
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Researchers such as Liu Ruili reported the preparation of nitrogen-doped graphitic carbon, but the preparation of phosphorus-doped graphitic carbon was not involved in the article; although researchers such as Terrones reported the use of ferrocene as a catalyst to prepare nitrogen-phosphorous doped multi-wall Carbon nanotubes, and researchers such as Jourdain reported the synthesis of phosphorus-doped multi-walled carbon tubes on NiFe catalysts supported by phosphorus-containing anodized alumina films, but there is no report on the preparation of phosphorus-doped graphite optical lenses

Method used

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  • Preparation method of phosphorus-doped graphite optical lens
  • Preparation method of phosphorus-doped graphite optical lens
  • Preparation method of phosphorus-doped graphite optical lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Place a quartz boat with a clean quartz plate in the middle of the quartz tube and place the quartz tube in a tube furnace, and raise the temperature of the high temperature part of the quartz tube under the protection of argon inert gas with a flow rate of 0.3 L / min to 900°C;

[0025] Add 2 mL of toluene and triphenylphosphine to the container bottle so that the amount of triphenylphosphine is 2.5 wt.%; under the protection of argon, inject this mixed solution into the Quartz tube, after the solution is vaporized, it is brought to the high temperature area by argon gas, the carbon source and phosphorus source decompose, and phosphorus-doped graphite begins to grow on the surface of the quartz sheet;

[0026] After 5 minutes, the heating was stopped, and under the protection of argon with a flow rate of 0.1 L / min, the quartz boat was moved from the middle of the quartz tube to the tail nozzle to cool to room temperature, and the clean quartz piece was taken out from the...

Embodiment 2

[0028] Place a quartz boat with a clean quartz piece in the middle of the quartz tube and place the quartz tube in a tube furnace, and raise the temperature of the high temperature part of the quartz tube under the protection of an argon inert gas with a flow rate of 0.4 L / min to 1000°C;

[0029] Add 4 mL of toluene to the container bottle, and then slowly add triphenylphosphine, the amount of triphenylphosphine is 5 wt.% toluene; after triphenylphosphine and ferrocene are completely dissolved, under the protection of argon , the mixed solution was injected into the quartz tube at a flow rate of 2.4 mL / h through a constant flow pump. After the solution was vaporized, it was brought to a high temperature area by argon, where the carbon and phosphorus sources were decomposed, and phosphorus-doped particles began to grow on the surface of the quartz plate. Miscellaneous graphite;

[0030] After 6 minutes, the heating was stopped, and under the protection of argon with a flow rat...

Embodiment 3

[0032] Place a quartz boat with a clean quartz plate in the middle of the quartz tube and place the quartz tube in a tube furnace, and raise the temperature of the high temperature part of the quartz tube under the protection of argon inert gas with a flow rate of 0.5 L / min to 1100°C;

[0033] Add 6 mL of toluene and triphenylphosphine to the container bottle, so that the amount of triphenylphosphine is 7.5 wt.%; after the triphenylphosphine is completely dissolved, under the protection of argon, the constant flow pump is used to The mixed solution was injected into the quartz tube at a flow rate of 2.7 mL / h. After the solution was vaporized, it was brought to the high-temperature zone by argon, and the carbon source and phosphorus source were decomposed, and phosphorus-doped graphite began to grow on the surface of the quartz sheet;

[0034] After 8 minutes, the heating was stopped, and under the protection of argon with a flow rate of 0.3 L / min, the quartz boat was moved fro...

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Abstract

The invention provides a preparation method of a phosphorus-doped graphite optical lens, which comprises the following steps: putting a quartz boat with a clean quartz plate into the middle part of a quartz pipe, putting the quartz pipe in a pipe furnace, and heating the high-temperature part of the quartz pipe to reaction temperature in an argon protective atmosphere; adding methylbenzene and triphenyl phosphorus into a conical flask, and injecting the mixed solution into the quartz pipe through a constant flow pump after the triphenyl phosphorus is completely dissolved, wherein the solution is gasified and carried to the high-temperature region by the argon, and the carbon source methylbenzene and the phosphorus source triphenyl phosphorus are decomposed so as to start growing phosphorus-dope lamellar graphite on the quartz plate surface; and after 5-10 minutes, stopping heating and solution injection, pulling the quartz boat to the pipe opening from the middle part of the quartz pipe, cooling the quartz boat to room temperature in an argon protective atmosphere, and taking out the quartz boat to obtain the phosphorus-doped graphite optical lens with favorable optical and conductive properties.

Description

technical field [0001] The invention relates to the technical field of graphite materials, in particular to a method for preparing phosphorus-doped graphite optical lenses. Background technique [0002] Graphite is an important carbon material with many unique properties, such as high temperature resistance, the melting point of graphite is as high as 3850 ° C, even after super high temperature arc burning, the weight loss is very small, and the thermal expansion coefficient is also small; good electrical and thermal conductivity The conductivity of graphite is one hundred times higher than that of general non-metallic minerals, because each carbon atom in graphite only forms 3 covalent bonds with surrounding carbon atoms, and each carbon atom still has 1 unbonded electron left to transport charges At the same time, its thermal conductivity exceeds that of metal materials such as steel, iron, and lead; it has good chemical stability at room temperature, can resist acid, alka...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/22
Inventor 刘滋武康国俊张绍良张文军渠俊峰魏贤勇
Owner CHINA UNIV OF MINING & TECH