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Composite material with carbon layer loaded on surface of inorganic carrier and preparation method of composite material

An inorganic carrier and composite material technology, which is applied in the fields of nanotechnology, nanotechnology, and nanotechnology for materials and surface science to achieve the effect of simple and reliable preparation process, low price, and industrialization.

Inactive Publication Date: 2019-05-28
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no reports and products of this kind of composite materials prepared by this method

Method used

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  • Composite material with carbon layer loaded on surface of inorganic carrier and preparation method of composite material
  • Composite material with carbon layer loaded on surface of inorganic carrier and preparation method of composite material
  • Composite material with carbon layer loaded on surface of inorganic carrier and preparation method of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The composite material of rod-shaped molecular sieve SBA-15 surface coated with carbon layer is prepared, and the preparation steps are as follows:

[0038] Weigh 4g SBA-15 (the specific surface area is 613.56m 2 / g, the average pore diameter is 7.74nm) was put into an oven and dried at 120°C for 12 hours, placed in a 100mL glass flask filled with 40mL of anhydrous toluene under a nitrogen atmosphere, stirred evenly by magnetic force, and added 4.8mL of 3-aminopropyl Trimethoxysilane, stirred and refluxed at 110°C for 12 hours, filtered under reduced pressure and washed with anhydrous toluene, dichloromethane, methanol, water, methanol in sequence, and dried at 80°C to constant weight to obtain the aminated mesoporous support . Put the above-mentioned aminated mesoporous carrier in a 500 mL hydrothermal kettle lined with polytetrafluoroethylene, add 12g of glucose and 200mL of water in sequence, stir evenly, tighten the reaction kettle, and place it in a heating device...

Embodiment 2

[0040] The composite material of rod-shaped molecular sieve SBA-15 surface coated with carbon layer is prepared, and the preparation steps are as follows:

[0041] Weigh 4g SBA-15 (the specific surface area is 613.56m 2 / g, the average pore diameter is 7.74nm) put it in an oven and dry at 100°C for 1 hour, place it in a 100mL glass flask filled with 10mL anhydrous toluene under nitrogen atmosphere, stir it evenly with magnetic force, add 0.4mL 3-aminopropyl Triethoxysilane, stirred and refluxed at 80°C for 12 hours, filtered under reduced pressure and washed with anhydrous toluene, dichloromethane, methanol, water, methanol in sequence, and dried at 60°C to constant weight to obtain aminated mesoporous carrier. Put the above-mentioned aminated mesoporous carrier in a 500mL hydrothermal kettle lined with polytetrafluoroethylene, add 2g of glucose and 20mL of water in sequence, stir evenly, tighten the reaction kettle, and place it in a heating device at 140°C for 2 hours. The...

Embodiment 3

[0043] The composite material of rod-shaped molecular sieve SBA-15 surface coated with carbon layer is prepared, and the preparation steps are as follows:

[0044] Weigh 4g SBA-15 (the specific surface area is 613.56m 2 / g, the average pore diameter is 7.74nm) put it in an oven and dry at 160°C for 12 hours, place it in a 250mL glass flask filled with 80mL of anhydrous toluene under a nitrogen atmosphere, stir it evenly by magnetic force, add 20mL N-(β-ammonia Ethyl-γ-aminopropyl)methyldimethoxysilane, stirred and refluxed at 120°C for 12 hours, filtered under reduced pressure and washed successively with anhydrous toluene, dichloromethane, methanol, water, methanol, and dried at 150°C The aminated mesoporous carrier can be obtained under the condition of constant weight. Place the above-mentioned aminated mesoporous carrier in a 500mL hydrothermal kettle lined with polytetrafluoroethylene, add 40g of glucose and 200mL of water in sequence, stir evenly, tighten the reaction k...

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Abstract

The invention relates to a composite material with a carbon layer loaded on the surface of an inorganic carrier. The composite material is characterized in that the material has the dual properties ofthe inorganic carrier and a carbon material, an inner core is the inorganic carrier, the surface is a coated carbon layer, and the carbon layer is controllable in morphology and thickness. The inorganic carrier may be a silicon-based carrier or a non-silicon-based carrier, and may be a non-porous material or a porous material. A carbon source is a biomass raw material such as glucose, sucrose, starch, cellulose and the like. The present invention also provides a preparation method of the composite material, which specifically comprises the following steps: (1) modifying an amino group on thesurface of the inorganic carrier by a silanization method; (2) taking the biomass as the carbon source, and loading the carbon layer on the surface of the inorganic carrier by a hydrothermal method; (3) roasting at high temperature to improve the graphitization property of the carbon layer The preparation process of the composite material is simple, convenient and low-cost, has a wide applicationrange, is easy to industrialize, and has broad application prospects in the fields of adsorption, chromatographic separation, battery materials and the like.

Description

technical field [0001] The invention relates to a novel carbon composite material and a preparation method thereof, in particular to a composite material with a carbon layer loaded on the surface of an inorganic carrier. technical background [0002] Carbon is one of the most abundant and important elements in nature. It has good chemical stability, thermal stability and electrical and thermal conductivity. Therefore, carbon-based materials have been widely used in the fields of adsorption, catalysis, and energy storage ( Titirici, MM, Chem. Soc. Rev., 2015, 44, 250). Based on the excellent properties of carbon materials, it has always been a research hotspot to seek high-yield carbon yield and low-cost preparation methods. At present, the preparation methods of carbon materials mainly include high-temperature pyrolysis, chemical vapor deposition, arc discharge, template method, hydrothermal carbonization and so on. Among them, the hydrothermal carbonization method is a gr...

Claims

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Application Information

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IPC IPC(8): C01B39/02B82Y40/00B82Y30/00
Inventor 梁鑫淼孙西同郭志谋于伟闫竞宇丰加涛金高娃李佳齐
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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