Nitrogen-containing two-dimensional conjugated carbon material, preparation method and application thereof

A two-dimensional conjugated, carbon material technology, applied in the field of electrochemical materials, can solve the problems of low energy density of supercapacitors and hinder the application of supercapacitors, and achieve excellent thermal stability, excellent cycle stability, and broad commercial application prospects Effect

Active Publication Date: 2019-03-26
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among many energy storage devices, supercapacitors have attracted increasing attention due to their high charge and discharge rates, high power density, and long cycle life. However, compared with energy storage devices such as lithium-ion batteries, the energy density of supercapacitors low, this disadvantage greatly hinders the application of supercapacitors

Method used

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  • Nitrogen-containing two-dimensional conjugated carbon material, preparation method and application thereof
  • Nitrogen-containing two-dimensional conjugated carbon material, preparation method and application thereof
  • Nitrogen-containing two-dimensional conjugated carbon material, preparation method and application thereof

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Embodiment 1

[0070] In this embodiment, the nitrogen-containing two-dimensional conjugated carbon material HATP-COF was prepared by the following steps:

[0071] Step (1): Synthesis of hexaaminotriphenylene monomer (HATP): Combine triphenylene compound 1 with liquid bromine, iron, nitrobenzene (PhNO 2 ) Perform bromination reaction at 205°C for 2 hours to obtain the hexabromo compound, compound 2. Combine compound 2 with 1,1'-binaphthyl-2,2'-bisdiphenylphosphine (rac-BINAP) and benzophenone Imine (Ph 2 C=NH), three (dibenzylideneacetone) two palladium (Pd 2 (dba) 3 ) React overnight at 110°C in toluene to produce imine compound 3; finally, acidolysis in tetrahydrofuran (THF) to obtain hexaaminotriphenylene monomer, compound 4 (HATP), the synthesis route is as follows:

[0072]

[0073] Step (2): Synthesis of HATP-COF precursor compound: 40.00 mg monomer HATP, 23.5 mg hexaketocyclohexane octahydrate and 0.1 mL 98% concentrated sulfuric acid were added to 2 mL of NMP. The mixed solution is placed...

Embodiment 2

[0080] In this embodiment, the nitrogen-containing two-dimensional conjugated carbon material HATP-COF was prepared by the following steps:

[0081] Step (1): Synthesis of hexaaminotriphenylene monomer (HATP): Combine triphenylene compound 1 with liquid bromine, iron, nitrobenzene (PhNO 2 ) Perform bromination reaction at 205°C for 2 hours to obtain the hexabromo compound, compound 2. Combine compound 2 with 1,1'-binaphthyl-2,2'-bisdiphenylphosphine (rac-BINAP) and benzophenone Imine (Ph 2 C=NH), three (dibenzylideneacetone) two palladium (Pd 2 (dba) 3 ) Reacted overnight at 110°C in toluene to produce imine compound 3; finally, acidolysis in tetrahydrofuran (THF) to obtain hexaaminotriphenylene monomer, compound 4 (HATP), its synthesis route is as follows:

[0082]

[0083] Step (2): Synthesis of HATP-COF precursor compound: 40.00 mg monomer HATP, 70.5 mg hexaketocyclohexane octahydrate and 0.2 mL 98% concentrated sulfuric acid were added to 3 mL of NMP. The mixed solution is plac...

Embodiment 3

[0087] In this embodiment, the nitrogen-containing two-dimensional conjugated carbon material HATP-COF was prepared by the following steps:

[0088] Step (1): Synthesis of hexaaminotriphenylene monomer (HATP): Combine triphenylene compound 1 with liquid bromine, iron, nitrobenzene (PhNO 2 ) Perform bromination reaction at 205°C for 2 hours to obtain the hexabromo compound, compound 2. Combine compound 2 with 1,1'-binaphthyl-2,2'-bisdiphenylphosphine (rac-BINAP) and benzophenone Imine (Ph 2 C=NH), three (dibenzylideneacetone) two palladium (Pd 2 (dba) 3 ) Reacted overnight at 110°C in toluene to produce imine compound 3; finally, acidolysis in tetrahydrofuran (THF) to obtain hexaaminotriphenylene monomer, compound 4 (HATP), its synthesis route is as follows:

[0089]

[0090] Step (2): Synthesis of HATP-COF precursor compound: 120.00 mg monomer HATP, 23.5 mg hexaketocyclohexane octahydrate and 0.15 mL 98% concentrated sulfuric acid were added to 2.5 mL of NMP. The mixed solution was...

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Abstract

The invention provides a nitrogen-containing two-dimensional conjugated carbon material and a preparation method and application thereof. The nitrogen-containing two-dimensional conjugated carbon material is a regular ordered sequence formed by connecting a triphenylene unit and a cyclohexyl unit through a pyrazine ring and comprises a conjugated structural unit as shown in Formula I, and the nitrogen-containing two-dimensional conjugated carbon material comprises a regularly ordered two-dimensional structure, a conjugated large pi structure, a uniform microporous structure, a very high specific surface area (2000-3500 m2) / g), excellent thermal stability ( larger than or equal to 1000 DEG C) and chemical stability and a nitrogen-doped carbon structure. The nitrogen-containing two-dimensional conjugated carbon material prepared by the preparation method of the invention can be applied as an electrode material of a super capacitor, the application range is wide, and the super capacitor has a variety of excellent performance including high specific capacitance, high rate performance, excellent cycle stability, high energy density and high power density.

Description

Technical field [0001] The invention belongs to the field of electrochemical materials, and relates to a nitrogen-containing two-dimensional conjugated carbon material and a preparation method and application thereof. Background technique [0002] Supercapacitor is an electrochemical element, the energy storage process is reversible and can be repeatedly charged and discharged hundreds of thousands of times. In today's society, the increasing development of portable electronic devices and wearable devices has higher and higher requirements for energy storage devices. Among many energy storage devices, supercapacitors have received increasing attention due to their high charge and discharge rate, high power density and long cycle life. However, compared with energy storage devices such as lithium ion batteries, the energy density of supercapacitors Low, this drawback greatly hinders the application of supercapacitors. Therefore, the current research on supercapacitors mainly foc...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/32C01B21/082
CPCC01B21/0605C01P2004/20C01P2006/12C01P2006/37C01P2006/40H01G11/24H01G11/30H01G11/32Y02E60/13
Inventor智林杰拉希德·伊克巴尔马英杰
OwnerTHE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA