Graphitized carbon purification method
A technology of graphitized carbon and purification methods, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve problems such as difficulty in separating amorphous carbon, and achieve excellent electromagnetic shielding performance, high conductivity, and good adsorption effect Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0024] 1. Dilute concentrated nitric acid to prepare 4 mol / L nitric acid solution;
[0025] 2. Soak 10 mg of one-dimensional composite carbon fiber in 25 mL of 4 mol / L nitric acid solution;
[0026] 3. Transfer the above step 2 solution to a 50 mL hydrothermal reactor at 170 °C for 15 hours, and wait for the reactor to cool and filter to obtain one-dimensional graphite carbon fibers;
[0027] 4. Wash the obtained one-dimensional graphite carbon fiber with distilled water and 95% alcohol for 3 times in sequence. After washing, the pH value is 6.5, and dry;
[0028] 5. Heat-treat the dried one-dimensional graphite carbon fiber at 500 °C for 30 min while passing hydrogen / argon mixed gas to a vacuum degree of -100 torr to remove the oxidation functional group;
[0029] 6. Prepare lithium-ion electrodes according to conventional methods: use the prepared graphite carbon fiber as the working electrode, the lithium sheet as the counter electrode, Celgard 2400 as the diaphragm, and 1...
Embodiment 2
[0031] 1. Dilute concentrated nitric acid to prepare 6 mol / L nitric acid solution;
[0032] 2. Soak 10 mg of composite carbon nanofibers embedded with nickel particles in 20 mL of 6 mol / L nitric acid solution;
[0033] 3. Transfer the above step 2 solution to a 50 mL hydrothermal reactor at a temperature of 150 °C for 12 h, and wait for the reactor to cool and filter to obtain hollow carbon nanomaterials;
[0034] 4. The obtained hollow carbon nanomaterials were cleaned 3 times in sequence with distilled water and 95% alcohol, and the pH value after cleaning was 6.8, and dried;
[0035] 5. Heat-treat the dried hollow graphitized carbon nanomaterials at 600°C for 30 minutes under the condition of vacuum degree -200torr while passing hydrogen / nitrogen mixed gas to remove the oxidation functional groups;
[0036] 6. Prepare the capacitor electrode according to the conventional method: use the prepared hollow graphitized carbon nanomaterial as the working electrode, Pt as the cou...
Embodiment 3
[0038] 1. Dilute concentrated nitric acid to prepare 7 mol / L mixed acid, wherein the molar ratio of nitric acid to hydrochloric acid is 9.5:0.5;
[0039] 2. Soak 10 mg of two-dimensional composite carbon membrane in 25 mL of 7 mol / L mixed acid solution;
[0040] 3. Transfer the above step 2 solution to a 50 mL hydrothermal reactor at 180 °C for 10 h, and wait for the reactor to cool and filter to obtain a two-dimensional ultra-thin graphitized carbon film;
[0041] 4, the two-dimensional ultra-thin graphitized carbon membrane obtained is cleaned 3 times with distilled water and 95% alcohol sequence, and the pH value after cleaning is 6.5, dries;
[0042] 5. Heat-treat the dried two-dimensional ultra-thin graphitized carbon film at 700 °C for 30 min to remove impurity functional groups while passing hydrogen / argon mixed gas to a vacuum degree of -300 Torr;
[0043] 6. Put the prepared material into wastewater containing heavy metal ions. The prepared two-dimensional ultra-thin...
PUM
| Property | Measurement | Unit |
|---|---|---|
| adsorption capacity | aaaaa | aaaaa |
| adsorption capacity | aaaaa | aaaaa |
| adsorption capacity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More