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Two-dimensional nitrogen-doped nano-graphene material and application thereof

A nano-graphene and nitrogen-doped technology, applied in graphene, nano-carbon, secondary batteries, etc., can solve the problem of expensive polymer nano-graphene materials, unfavorable large-scale commercial production, and low stability performance indicators and other problems, to achieve the effect of solving difficulty and economic problems, fast charging ability, and good battery performance

Active Publication Date: 2019-03-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although such materials are widely used in actual production and application, they cannot meet the existing requirements in terms of practical performance; moreover, a large amount of silicon is introduced into the nano-graphene composite material, which increases its own stability but greatly reduces its performance. Indicators: Under the existing conditions, the large-scale application of polymer nano-graphene materials is expensive, which is not conducive to large-scale commercial production, and there are problems in general application

Method used

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  • Two-dimensional nitrogen-doped nano-graphene material and application thereof
  • Two-dimensional nitrogen-doped nano-graphene material and application thereof
  • Two-dimensional nitrogen-doped nano-graphene material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: Preparation of two-dimensional nitrogen-doped nano-graphene material compound (I-1)

[0031]

[0032] Weigh 1.0g of 2-(1,2,3,4-pentaphenyl)pyridine, dissolve it in 5.0ml of nitromethane and stir for 5 minutes, slowly add 3.0g of ferric chloride, and then add it to the three-necked flask. React at 100°C for 24 hours. After the reaction is complete, cool down to room temperature, filter the solid directly, wash with a mixed solvent (1.0ml methanol: 1.0ml acetone: 1.0ml ethyl acetate) for 3 times, and dry to obtain the structure of formula (I-1) The compound 0.81g, the yield is 83%.

[0033] Weigh 1.0g of 2-(1,2,3,4-pentaphenyl)pyridine, dissolve it in 5.0ml of nitrobenzene and stir for 5 minutes, slowly add 2.5g of aluminum chloride, then add it to the three-necked flask, add After the completion of the reaction at 100°C for 24 hours, after the completion of the reaction, cool down to room temperature, filter the solid directly, wash with a mixed solvent...

Embodiment 2

[0036] Example 2 Preparation of two-dimensional nitrogen-doped nano-graphene material compound (I-2)

[0037]

[0038] Weigh 1.0g 2,2'-(3',6'-diphenyl-[1,1':2',1''-diphenyl]-4',5')dipyridine, dissolve in 5.0 mL of nitromethane was stirred for 5 minutes, slowly added 3.0g of ferric chloride, and then added to a three-necked flask. After the addition was completed, it was reacted at 100°C for 24 hours. 1.0ml of acetone: 1.0ml of ethyl acetate) mixed solvent was washed 3 times, and dried to obtain 0.80g of the compound having the structure of formula (I-2), with a yield of 82%.

[0039] Weigh 1.0g 2,2'-(3',6'-diphenyl-[1,1':2',1''-diphenyl]-4',5')dipyridine, dissolve in 5.0 ml of nitrobenzene was stirred for 5 minutes, slowly added 2.6g of aluminum trichloride, and then added to a three-necked flask. After the addition was completed, it was reacted at 100°C for 24 hours. Methanol: 1.0ml acetone: 1.0ml ethyl acetate) mixed solvent, washed 3 times, and dried to obtain 0.67g of...

Embodiment 3

[0042] Embodiment 3: the preparation of two-dimensional nitrogen-doped nano-graphene material compound (1-3)

[0043]

[0044] Weigh 1.0g 2,2',2''-(5'-phenyl-[1,1':2',1''-phenyl]-3',4',6'-phenyl)tri Pyridine, dissolved in 5.0ml of nitromethane and stirred for 5 minutes, slowly added 3.0g of ferric chloride, added to the three-necked flask, after the addition was completed, reacted at 100°C for 24 hours, after the reaction was completed, cooled to room temperature, directly filtered the solid, and used (1.0ml methanol: 1.0ml acetone: 1.0ml ethyl acetate) mixed solvent was washed 3 times, and dried to obtain 0.78g of the compound having the structure of formula (I-3), with a yield of 81%.

[0045] Weigh 1.0g 2,2',2''-(5'-phenyl-[1,1':2',1''-phenyl]-3',4',6'-phenyl)tri Pyridine, dissolved in 5.0ml of nitrobenzene and stirred for 5 minutes, slowly added 2.6g of aluminum trichloride, added to the three-necked flask, after the addition was completed, reacted at 100°C for 24 hour...

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Abstract

The invention belongs to the technical field of anode lithium batteries and relates to a two-dimensional nitrogen-doped nano-graphene material and application thereof. The structural formula of the nano-graphene material is represented by a formula (I) (shown in the description). The nano-graphene anode material provided by the invention has relatively good battery performance, charging circulating durability and electrical conductivity, meanwhile, rapid charging and discharging capacities are provided for a lithium ion cathode, and the nano-graphene material has important practical application values.

Description

technical field [0001] The invention belongs to the technical field of anode lithium batteries, and relates to a two-dimensional nitrogen-doped nano-graphene material and its application. Background technique [0002] J. S. Driscoll et al. An organic electrode material using dichloroisocyanuric acid as a cathode material was first reported in 1969. Since then, multiple research groups have tested various organic electrode materials as anodes for LIBs. Many inorganic redox-active electrode materials have been synthesized in the prior art and should be commercially available. Although these materials possess good rate capability and remarkable cycling stability, the complicated fabrication process leads to high fabrication cost and uncontrollable structure, which greatly limits the applications. [0003] As the market share of environmental protection energy continues to grow, new battery technologies are being applied, and graphene batteries are an irreplaceable new techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/182H01M4/583H01M4/62H01M10/0525
CPCH01M4/583H01M4/625H01M10/0525C01B32/182C01B2204/22C01B2204/32Y02E60/10
Inventor 金国范刘瑞江肖福燕于庆梅
Owner JIANGSU UNIV
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