Preparation method for single crystal cobalt oxide nano-sphere/carbon nano-tube composite nano-material
A composite technology of cobalt trioxide nanometer and carbon nanotube, which is applied in the direction of cobalt oxide/cobalt hydroxide and nanotechnology, and achieves the effects of uniform size, low preparation cost and increased dispersion
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0020] Weigh 0.05g of CNTs and 0.05g of CTAB into 20mL of distilled water and ultrasonically disperse for 20 minutes, then add 20mL of ethylene glycol, and then add 0.05mol of cobalt nitrate hexahydrate to fully dissolve it. Then, the above mixed solution was stirred at room temperature for 10 minutes. Then put the mixed solution into a 50ml autoclave with a Teflon liner, keep the temperature at 120° C. for 12 hours, and then naturally cool to room temperature. The obtained product was repeatedly washed with distilled water and absolute ethanol three times, and dried in vacuum at 70° C. for 12 hours to obtain a composite of single-crystal cobalt tetraoxide nanosphere-coated carbon nanotubes. figure 1 This is the XRD spectrum of the composite obtained in this example. Except for one diffraction peak corresponding to CNTs, the other diffraction peaks well correspond to the diffraction peaks of tricobalt tetroxide. The peak shape is sharp, indicating that the coated tricobalt te...
Embodiment 2
[0022] Weigh 0.05g of CNTs and 0.05g of CTAB into 20mL of distilled water and ultrasonically disperse for 20 minutes, then add 20mL of ethylene glycol, and then add 0.5mol of cobalt nitrate hexahydrate to fully dissolve it. Then, the above mixed solution was stirred at room temperature for 10 minutes. Then put the mixed solution into a 50ml autoclave with a Teflon liner, keep the temperature at 120° C. for 12 hours, and then naturally cool to room temperature. The obtained product was repeatedly washed with distilled water and absolute ethanol three times, and dried in vacuum at 70° C. for 12 hours to obtain a composite of single-crystal cobalt tetraoxide nanosphere-coated carbon nanotubes. figure 2 (b) FESEM image of the composite of carbon nanotubes coated with cobalt trioxide nanospheres.
Embodiment 3
[0024] Weigh 0.05g of CNTs and 0.05g of CTAB into 20mL of distilled water and ultrasonically disperse for 20 minutes, then add 20mL of ethylene glycol, and then add 0.5mol of cobalt nitrate hexahydrate to fully dissolve it. Then, the above mixed solution was stirred at room temperature for 10 minutes. Then put the mixed solution into a 50ml autoclave with a Teflon liner, keep the temperature at 160° C. for 12 hours, and then naturally cool to room temperature. The obtained product was repeatedly washed with distilled water and absolute ethanol three times, and dried in vacuum at 70° C. for 12 hours to obtain a composite of single-crystal cobalt tetraoxide nanosphere-coated carbon nanotubes. figure 2 (c) is a FESEM photo of a composite of cobalt tetraoxide nanospheres coated with carbon nanotubes.
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More