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A method of loading easily sublimable substances in porous materials

A technology of porous materials and substances, applied in metal material coating process, vacuum evaporation plating, coating and other directions, can solve the problems of harsh process conditions, long load time, difficult to realize automatic process, etc., to achieve high load, cooling Fast, easy to automate effects

Active Publication Date: 2019-09-27
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process conditions of this method are relatively harsh, and the loading time is long, so it is difficult to realize the automatic process.

Method used

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  • A method of loading easily sublimable substances in porous materials
  • A method of loading easily sublimable substances in porous materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Pretreatment of the acetylene black porous carbon material and the used container conduit: wash 1 g of the acetylene black porous carbon material and the used container and conduit with deionized water and put them in a blast drying oven to dry at 80°C 10h, remove surface moisture;

[0041] (2) 1g of elemental sulfur is put into a sealed container, and 1g of acetylene black porous carbon material is loaded inside the cooling device (condenser);

[0042] (3) Introduce nitrogen, and turn on the vacuum pump, adjust the gas cylinder and the vacuum pump valve to maintain -0.1Mpa in the sealed container, and keep it for 30s until the air in the entire device is completely eliminated;

[0043] (4) Heat the sealed container to a temperature of about 500°C, the elemental sulfur in the sealed container is heated and sublimated into sulfur vapor, and the sulfur vapor enters the cooling device driven by negative pressure, and keeps for 1 second to fill the cooling device with s...

Embodiment 2

[0048] (1) Pretreatment of the mesoporous silicon material and the container conduit used: 100 g of the mesoporous silicon material, the container and the conduit used were cleaned with deionized water and put into a blast drying oven at 100°C for 24 hours. remove surface moisture;

[0049] (2) 100g of elemental iodine is put into a sealed container, and 100g of mesoporous silicon material is loaded inside the cooling device (multi-tube cooler);

[0050] (3) Introduce helium, turn on the vacuum pump, adjust the gas cylinder and the vacuum pump valve to maintain -10.0Mpa in the sealed container, and keep it for 30 minutes until the air in the entire device is completely eliminated;

[0051] (4) Use an electric heating mantle to heat the sealed container, the heating temperature is about 300°C, the elemental iodine in the sealed container is heated and sublimated into iodine vapor, and the iodine vapor enters the cooling device under negative pressure drive, and keeps for 10 min...

Embodiment 3

[0055] (1) Pretreatment of the zeolite molecular sieve and the used container conduit: wash the zeolite molecular sieve, the used container and the conduit with deionized water, and put them in a blast drying oven for 12 hours at 90°C to remove surface moisture;

[0056] (2) 10g elemental naphthalene is put into a sealed container, and 50g zeolite molecular sieve is loaded inside the cooling device (condenser);

[0057] (3) Introduce argon gas, turn on the vacuum pump, adjust the gas cylinder and the valve of the vacuum pump to maintain -1.0Mpa in the sealed container, and keep it for 10 minutes until the air in the entire device is completely eliminated;

[0058] (4) Use an alcohol lamp to heat the sealed container at a heating temperature of about 500°C. The elemental naphthalene in the container is heated and sublimated into naphthalene vapor, and the naphthalene vapor enters the cooling device under negative pressure drive, and keeps for 1 minute so that the naphthalene vap...

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Abstract

The invention discloses a method for loading substances easy to sublimate in porous materials. The method comprises the following steps of adding elementary substances which are easy to sublimate to a sealing container; loading preprocessed porous materials in a cooling device; introducing inert atmosphere in the sealing container; starting a vacuum pump to enable the sealing container to maintain negative pressure until the air in the evaporation cooling device is completely exhausted; heating the sealing container to enable the elementary substances which are easy to sublimate to be heated and sublimate to form steam of the substances which are easy to sublimate, and are gradually filled in the cooling device; starting the cooling device; and maintaining loading for a certain time according to the quality of the porous material, so as to obtain compound materials which are high in loading capacity and uniform in distribution. According to the method disclosed by the invention, after being gasified, the elementary substances which are easy to sublimate are condensed on the surfaces of the porous materials, so that loading of the substances which are easy to sublimate is realized; the reaction temperature is low, no waste is generated, and the loading capacity of the porous materials is improved; and because the substances which are easy to sublimate in the gas phase are high in cooling speed, after solidification, the particle diameters of particles are small, and the uniformity coefficient of the porous materials loading the substances which are easy to sublimate is optimized.

Description

technical field [0001] The invention belongs to the field of environmental protection or new energy, and in particular relates to a method for loading easily sublimable substances in porous materials. Background technique [0002] With the advancement of human industrialization, the earth's resources are increasingly depleted. While people are eager to find new energy sources, they pay more attention to the recycling of existing energy sources. In addition, environmental pollution caused by the use of fossil fuels has also been criticized by environmentalists and scientists. Since the 1980s in our country, while the national economy has developed rapidly, the problems of resource depletion and environmental pollution have become increasingly prominent. As a large coal country in my country, coal resources account for more than half of the total resource reserves, and coal resources are often accompanied by huge waste in mining, processing, and power generation applications....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/24C23C14/06
Inventor 燕映霖李巧乐任冰陈利萍杨蓉许云华王岩秦海超史忙忙魏一奇
Owner XIAN UNIV OF TECH
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