Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fabrication method of graphene nanobelt with visible-light response

A graphene nanobelt, visible light technology, applied in the direction of graphene, nanotechnology for materials and surface science, nanocarbon, etc., to achieve the effect of simple equipment, favorable for industrialization promotion, and good optical properties

Inactive Publication Date: 2013-04-03
SHANGHAI NAT ENG RES CENT FORNANOTECH +1
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some basic scientific problems to be solved urgently for graphene to be truly applied in electronics and photochemistry, such as the control of graphene morphology, especially in the preparation of monodisperse nano-sized graphene.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fabrication method of graphene nanobelt with visible-light response
  • Fabrication method of graphene nanobelt with visible-light response
  • Fabrication method of graphene nanobelt with visible-light response

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: 5ml of graphene oxide (GO, 2.1mg / ml) was measured by a measuring cylinder, dispersed in 40ml of ultrapure water, ultrasonically dispersed for 1 hour, and then evaporated to dryness at 60°C. Then, the evaporated GO flakes were transferred to a vacuum tube furnace and vacuum reduced at 300 °C for 3 h. The graphene obtained after reduction was again dispersed in 20ml ultrapure water, ultrasonically dispersed for 10min, 30min, 1h, 2h, 4h, 8h, and washed 3 times. Finally, it was dispersed in 5ml ultrapure water to obtain graphene nanoribbons, marked as GR.

[0020] The photocurrent test and evaluation method provided by the present invention is as follows: what we adopted is the test system of three standard electrodes, with 0.5 M sodium sulfate as electrolyte, the prepared samples are dispersed on conductive glass (the area of ​​the samples is 0.5 cm -2 ), as the working electrode; platinum electrode as the contrast electrode; saturated Ag / AgCl as the reference ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a fabrication method of a graphene nanobelt with a visible-light response. The fabrication method is characterized in that the fabrication method comprises the steps that with the adoption of a vacuum reduction method, oxidized graphene is reduced to graphene at 300 DEG C; in addition, a C=C bond in a graphene framework is damaged; the ultrasonic treatment is adopted; and the graphene nanobelt that is 100-400nm in length and 20-80nm in width is obtained. The nanobelt exposes more edges, can serve as an ideal carrier, and reflects a characteristic of a semiconductor. The prepared graphene nanobelt has strong photoproduction electron ability and electron transmission ability under the exposure of simulating sunlight.

Description

technical field [0001] The invention relates to a preparation method of a graphene nanoribbon with visible light response. Background technique [0002] Graphene is a rising star in materials science and condensed matter physics. Due to its absolute two-dimensional structure and excellent mechanical, thermal, optical and electrical properties, graphene has greatly inspired people to design graphene-based applications in nanoelectronics, biosensing, polymer composites, hydrogen Interest in novel materials in technical fields such as production and storage, drug delivery and photocatalysis. In addition, graphene is considered to be a multifunctional material that can transport electrons or holes better than carbon nanotubes due to its excellent electrical conductivity and chemical stability. [0003] As a perfect two-dimensional crystal, graphene has attracted extensive attention from the scientific community due to its unique structure. The carriers of graphene are similar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C01B31/04B82Y30/00B82Y40/00C01B32/184
Inventor 金彩虹何丹农刘睿张金龙邢明阳杨小龙
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com