Preparation method of double-layer graphene intercalation compound

A double-layer graphene and graphite intercalation technology, which is applied in the direction of graphene, carbon compounds, chemical instruments and methods, etc., can solve the problems of difficulty in obtaining first-order compounds and poor stability of synthetic products, and achieve low equipment requirements, Effects in simple steps

Inactive Publication Date: 2018-07-24
YANCHENG TEACHERS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The synthesis equipment of this method is simple, the synthesis amount is large, and the product structure is stable. The disadvantage of this method is that the stability of the synthesized product is worse than other methods, and side reactions occur under high current in aqueous solution, making it difficult to obtain first-order compounds.

Method used

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  • Preparation method of double-layer graphene intercalation compound
  • Preparation method of double-layer graphene intercalation compound
  • Preparation method of double-layer graphene intercalation compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Mix 30g of iodine chloride and 50mg of expanded graphite evenly, fill it with protective gas Ar, and seal it in a 50mL glass bottle.

[0024] (2) Place in an oil bath environment at 160°C and heat for 48 hours to prepare a second-order graphite intercalation compound.

[0025] (3) The graphite intercalation compound was quickly taken out from the glass bottle and filtered.

[0026] (4) Put all the graphite intercalation compounds into the quartz boat quickly, and place the quartz boat in an argon protective atmosphere.

[0027] (5) Heat the quartz boat to 800°C for 5 minutes.

[0028] (6) After the reaction is completed, the sample is taken out, and the sample is cleaned to obtain a double-layer graphene powder aggregate.

[0029] (7) 0.3g anhydrous FeCl 3 Mix evenly with 0.05g double-layer graphene powder, and vacuum seal it in a 20mL vacuum ampoule.

[0030] (8) Put the vacuum ampoule into the muffle furnace, raise the temperature to 380° C. for 1 hour, and ma...

Embodiment 2

[0035] (1) Mix 30g of iodine chloride and 50mg of high-temperature oriented pyrolytic graphite evenly, fill it with protective gas Ar, and seal it in a 50mL glass bottle.

[0036] (2) Place in an oil bath environment at 160°C and heat for 48 hours to prepare a second-order graphite intercalation compound.

[0037] (3) The graphite intercalation compound was quickly taken out from the glass bottle and filtered.

[0038] (4) Put all the graphite intercalation compounds into the quartz boat quickly, and place the quartz boat in an argon protective atmosphere.

[0039] (5) Heat the quartz boat to 800°C for 5 minutes.

[0040] (6) After the reaction is completed, the sample is taken out, and the sample is cleaned to obtain a double-layer graphene powder aggregate.

[0041] (7) 0.3g anhydrous FeCl 3 Mix evenly with 0.05g double-layer graphene powder, and vacuum seal it in a 20mL vacuum ampoule.

[0042] (8) Put the vacuum ampoule into the muffle furnace, raise the temperature to...

Embodiment 3

[0045] (1) Mix 30g of iodine chloride and 50mg of expanded graphite evenly, fill it with protective gas Ar, and seal it in a 50mL glass bottle.

[0046] (2) Place in an oil bath environment at 160°C and heat for 48 hours to prepare a second-order graphite intercalation compound.

[0047] (3) The graphite intercalation compound was quickly taken out from the glass bottle and filtered.

[0048] (4) Put all the graphite intercalation compounds into the quartz boat quickly, and place the quartz boat in an argon protective atmosphere.

[0049] (5) Heat the quartz boat to 1000°C for 5 minutes.

[0050] (6) After the reaction is completed, the sample is taken out, and the sample is cleaned to obtain a double-layer graphene powder aggregate.

[0051] (7) 0.6g anhydrous FeCl 3 Mix evenly with 0.1g double-layer graphene powder, and vacuum-tightly seal it in a 20mL vacuum ampoule.

[0052] (8) Put the vacuum ampoule into the muffle furnace, raise the temperature to 380° C. for 0.5 h,...

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Abstract

The invention provides a preparation method of a double-layer graphene intercalation compound. The preparation method comprises the following steps: utilizing iodine chloride as an intercalation agentto obtain a second-order graphite intercalation compound, carrying out high-temperature treatment on the second-order graphite intercalation compound to decompose the iodine chloride and then uses the generated gas to peel a graphite sheet layer, thus obtaining double-layer high-quality graphene material; by utilizing ferric trichloride and the like as intercalation agents, applying a salt melting method to carry out intercalation on the double-layer high-quality graphene material, thus obtaining the double-layer graphene intercalation compound. The preparation method provided by the invention has the beneficial effects that the double-layer graphene intercalation compound is obtained by utilizing controllable preparation of double-layer graphene, and with existence of the intercalation agents, the interlayer spacing is enlarged, and then migration of free carriers of a sheet layer also can be caused, so that different electrics, thermology and magnetics properties and the like are obtained; the graphene intercalation compound based on double-layer graphene overcomes the defect of too large size of the traditional graphite intercalation compound, and can be applied in the aspectsof manufacture of devices such as novel micro / nanoelectronics, transparent electrodes and high-frequency transistors.

Description

technical field [0001] The invention relates to the field of preparation of graphene intercalation compounds, which uses double-layer graphene and an intercalation agent to prepare double-layer graphene intercalation compounds. Background technique [0002] Graphite intercalation compound is a composite material in which different atoms or molecules are inserted between graphite layers to form a new intercalation layer. The existence of the intercalation agent increases the distance between graphite layers, and different intercalation agents also allow the free carriers of the graphite layer to migrate, thereby obtaining compounds with different electrical, thermal, and magnetic properties. Graphite is an interlayer compound made by chemical treatment. Its properties are much better than graphite. It has excellent properties or functions such as high temperature resistance, thermal shock resistance, oxidation resistance, corrosion resistance, lubricity and sealing. It is a g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/19C01B32/194
CPCC01B2204/04
Inventor 苗中正
Owner YANCHENG TEACHERS UNIV
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