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

Controllable preparation method of fullerene sub-micron tube

A fullerene submicron and fullerene technology, applied in nanotechnology and other directions, can solve the problems of inability to prepare submicron tubes, failure to realize controllable preparation of submicron tubes, etc., and achieve a process method that is easier to control and easy to operate. , the effect of simple process

Inactive Publication Date: 2012-03-21
QINGDAO UNIV OF SCI & TECH +1
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method includes grinding the fullerenes to a metallic luster, dissolving them in a good solvent to form a saturated solution, irradiating them with natural light or visible light in a container to form a colloidal solution, mixing them with a certain amount of poor solvent, and putting them into a constant temperature box. In a certain period of time, crystallization and precipitation of single-crystal fullerene nano-micron fibers with a length of millimeters to centimeters, but this method can only obtain fullerene nanotubes with a high repetition rate, and cannot prepare submicron tubes with a fixed inner and outer diameter. , failed to realize the controllable preparation of submicron tubes

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
  • Controllable preparation method of fullerene sub-micron tube
  • Controllable preparation method of fullerene sub-micron tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for the controllable preparation of fullerene submicron tubes, comprising the following steps;

[0031] (1) Weigh 0.01g of C60 (purity>99.5%) powder into a clean transparent glass bottle, measure 10ml of pyridine and mix it with C60 powder in the glass bottle, and seal the glass bottle. Put the above solution into an ultrasonic container, control the temperature of the water bath at 8°C with ice water, and ultrasonically sonicate with 100W power for 20min, so as to fully disperse and dissolve C60 in the solvent. After the ultrasonication, the above solution was taken out from the water bath, and filtered quickly to obtain a saturated solution of fullerene, which was purple in color and clear and transparent.

[0032] (2) Use an ice-water bath to control the temperature at 8° C., and irradiate the saturated solution of C60 with a blue LED light source with a center wavelength of 468 nm for 30 min. After irradiation, the solution was maroon and clear.

[0033] ...

Embodiment 2

[0035] A method for the controllable preparation of fullerene submicron tubes, comprising the following steps;

[0036] (1) Weigh 0.01g of C70 (purity > 99.5%) powder into a clean transparent glass bottle, measure 10ml of benzene in the glass bottle, mix it with the C70 powder, and seal the glass bottle. Put the above solution into an ultrasonic container, control the temperature of the water bath at 5°C with ice water, and ultrasonically sonicate with 50W power for 40min, so as to fully disperse and dissolve C70 in the solvent. After the ultrasonication, the above solution was taken out from the water bath, and filtered quickly to obtain a saturated solution of fullerene, which was purple in color and clear and transparent.

[0037] (2) Use an ice-water bath to control the temperature at 5° C., and irradiate the saturated solution of C70 with a green LED light source with a center wavelength of 525 nm for 30 min. After irradiation, the solution was maroon and clear.

[0038...

Embodiment 3

[0040] A method for the controllable preparation of fullerene submicron tubes, comprising the following steps;

[0041] (1) Weigh 0.01g of C60 / C70 (85 / 15) powder into a clean transparent glass bottle, measure 10ml of toluene and mix it with C60 / C70 powder in the glass bottle, and seal the glass bottle. Put the above solution into an ultrasonic container, use ice water to control the temperature of the water bath at 3°C, and use ultrasonic power of 70W for 50 minutes to fully disperse and dissolve C60 / C70 in the solvent. After the ultrasonication, the above solution was taken out from the water bath, and filtered quickly to obtain a saturated solution of fullerene, which was purple in color and clear and transparent.

[0042] (2) Use an ice-water bath to control the temperature at 3° C., and irradiate the saturated solution of C60 / C70 with a white LED light source with a central wavelength of 300-700 nm for 30 min. After irradiation, the solution was maroon and clear.

[0043...

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 controllable preparation method of a fullerene sub-micron tube. The controllable preparation method comprises the following steps: dissolving fullerene molecules in a good solvent at low temperature so as to obtain a saturated solution of the fullerene molecules; placing the saturated solution under a specific light source for exciting irradiation for certain time; and evenly mixing the saturated solution with a poor solvent, then placing the obtained mixed solution in a thermotank for static cultivation for certain time, and finally separating out the monocrystalline fullerene sub-micron tube with high length-diameter ratio and controllable inner and outer diameter through crystallization. The controllable preparation method has the advantages of simple process, more easily controlled technological process and good repeatability; and the fullerene sub-micron tube obtained by the preparation method has broad application prospects in the fields such as nano-micron electrodes, fuel cell electrodes, gaseous or electrochemical hydrogen storage materials, electromagnetic shielding materials, high-frequency wave-absorbing materials, catalysts and carriers thereof, nano-transistors, nano wires and the like.

Description

technical field [0001] The invention relates to the field of fullerene submicron materials, in particular to a controllable preparation method of fullerene submicron tubes. Background technique [0002] On Earth, early people thought that there were two isomers of carbon: graphite and diamond. In 1985, H.W.Kroto and R.E.Smalley discovered the C60 and other fullerene families when studying laser-evaporated graphite electrodes. In 1991, Dr. Iijima of Japan Electronics Corporation discovered carbon nanotubes, which became a new isotope in the carbon family. isomer. The newly discovered fullerenes and carbon nanotubes will further open up unlimited prospects for human beings to widely use their special properties. [0003] Since the discovery of fullerene C60 in 1985, C60 molecules have been widely used in scientific research due to their unique physical and chemical properties such as distinctive structural features, perfect structural symmetry, three-dimensional conjugation,...

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): C01B31/02B82Y40/00
Inventor 李少香瞿永涛陈希磊
Owner QINGDAO UNIV OF SCI & TECH
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