Carbon nano tube cladded with rare earth oxide and its preparation method and use
A rare earth oxide and carbon nanotube technology, applied in the field of carbon nanotubes, can solve the problems of difficult control, inability to use, random granularity, etc., and achieve the effects of easy separation and purification, less solvent consumption, and good permeability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0029] Example 1.
[0030] Add 100 milligrams of multi-walled carbon nanotubes to 20 milliliters of mixed acid of sulfuric acid and nitric acid (volume ratio is 3), sonicate for 2 hours, dilute with 100 milliliters of distilled water, filter, and then wash with distilled water to neutral, vacuum After drying, a purified chopped carbon nanotube is obtained, with a diameter of 50-80 nanometers and a length of 0.5-5 micrometers.
[0031] use figure 1 The device shown. Add 10 mg of purified carbon nanotubes and 2 ml of 5wt% europium nitrate ethanol solution into a stainless steel high-pressure vessel 6, put it into a thermostat 8, adjust the temperature controller 9 to keep the temperature constant at 35°C, and open the valve 3 and valve 5, inject carbon dioxide through the syringe pump 2, when the pressure of the barometer 4 reaches 9×10 6 After pascals, close valve 3 and increase the temperature to 120°C. After maintaining this pressure and temperature for 10 hours, reduce the temp...
Example Embodiment
[0033] Example 2.
[0034] According to the preparation method of Example 1, the only difference is that the pressure of the stainless steel high-pressure vessel is 1×10 6 In Pascals, the coating ratio of the obtained carbon nanotubes is 20% or more. The purified and chopped carbon nanotubes are obtained, which have a diameter of 40-70 nanometers and a length of 1-4 micrometers. The coating layer is discontinuous, and its use is the same as in Example 1.
Example Embodiment
[0035] Example 3.
[0036] According to the preparation method of Example 1, except that the time of constant temperature and pressure is shortened from 10 hours to 3 hours, the filling rate of the obtained carbon nanotubes is more than 30%. The purified and chopped carbon nanotubes are obtained, with a diameter of 30-70 nanometers and a length of 0.5-3 micrometers. The coating layer is not continuous, and the usage is the same as in Example 1.
PUM
Property | Measurement | Unit |
---|---|---|
Diameter | aaaaa | aaaaa |
Length | aaaaa | aaaaa |
Diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap