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Graphene nanoribbons with controlled zig-zag edge and cove edge configuration

一种石墨烯纳米带、锯齿形的技术，应用在置以及弯曲形边缘碳领域，能够解决GNR难以实现等问题

Active Publication Date: 2016-11-09
BASF SE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, due to the inherent limitations of photolithographic methods and other known methods of fabricating graphene nanostructures, in the hexagonal sp with the required high precision 2 Experimental realization of GNRs with controlled zigzag and / or curved edge structures in carbon networks remains elusive

Method used

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  • Graphene nanoribbons with controlled zig-zag edge and cove edge configuration
  • Graphene nanoribbons with controlled zig-zag edge and cove edge configuration
  • Graphene nanoribbons with controlled zig-zag edge and cove edge configuration

Examples

Experimental program
Comparison scheme
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Embodiment

[0194] 1. Synthesis scheme of monomer 1 (monomer structure V)

[0195]

[0196] 7-bromo-2-naphthol (101)

[0197] To a stirred suspension of triphenylphosphine (31.5 g) in acetonitrile (50 mL) in a 250 mL Schlenk flask was added bromine (6.2 mL) carefully by syringe over 30 minutes at 0°C. The yellow solution was warmed to room temperature and 2,7-dihydroxynaphthalene (16 g) was added in one portion. The reaction was refluxed at 70°C for 1 hour. After cooling to room temperature, the solvent was removed under reduced pressure. The reaction flask was connected to a gas wash bottle filled with concentrated sodium hydroxide solution. The flask was heated to 250° C. for two hours, and the black residue was dissolved in 100 mL of dichloromethane and purified by column chromatography (DCM:pentane 1:1 to pure DCM). The product 101 (14.7 g, 66%) was obtained as a beige powder.

[0198] DC: dichloromethane:pentane, 1:1, Rf=0,2

[0199] 1 H-NMR: θ (300MHz, CDCl 3 ) = 7.76(d, ...

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Abstract

Provided are graphene nanoribbons with controlled zig-zag edge and cove edge configuration and methods for preparing such graphene nanoribbons. The nanoribbons are selected from the following formulae.

Description

[0001] The present invention relates to graphene nanoribbons with controlled zigzag edge and curved edge configurations and methods for preparing such graphene nanoribbons. Background of the invention [0002] Graphene—an atomically thin layer of graphite—has received considerable attention in materials science due to the recent discovery of its tantalizing electronic properties such as high carrier mobility, ambipolar exchange capability, and quantum Hall effect. The combination of its chemical robustness and excellent mechanical properties makes graphene an ideal candidate for a variety of applications requiring ultra-thin but still stable and highly conductive layers or larger specific regions, such as in energy storage applications. [0003] One of the major limitations of using graphene in efficient data exchange applications is the absence of an electronic band gap. This obstacle can be overcome by reducing the graphene structure to the nanoscale, where quantum confineme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C15/20C01B31/04C08G61/10B82Y40/00
CPCC07C15/20C01B2204/06C08G2261/314C08G2261/72C07C25/22C01B32/184C08G61/10C08G2261/312C08G2261/724
Inventor M·G·施瓦布K·米伦冯新良B·杨T·杜姆斯拉夫R·法泽尔P·吕菲克斯J·刘J·蔡C·桑切斯-桑切斯
Owner BASF SE
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