Back to results
US 12,759,882 B2Granted
Synthesis of carbon nano-onions by nanodiamond annealing and functionalization of carbon materials
OwnerNima Golsharifi, Suguru Frederick Amakuboinventors
Life of this patent
Estimating the term…
Abstract
Disclosed herein are methods of synthesizing carbon nano-onions, their functionalization methods, and their use as electrode material. More specifically, disclosed are methods of converting nanodiamonds into carbon nano-onions, chemical synthesis of carbon nano-onions from reagents, and functionalization using reagents, reactive gases, and photoexcitation. The use of the synthesized and functionalized carbon nano-onions as an electrode by using them as a composite structure is also disclosed.
Claims18
A method of forming carbon nano-onions, comprising:
- adding a carbon material comprising nanodiamond to a vessel;
- and
- annealing the carbon material in the vessel under vacuum at a pressure of 10−2-10−7 Pa at a temperature of 1500-4000° C. for 1 min to 24 hr.
A method of forming carbon nano-onions, comprising:
- mixing copper chloride hydrate and calcium carbide in a vessel at a mixing ratio of copper chloride hydrate to calcium carbide between 2:1 to 4:1;
- annealing the mixture in the vessel at a temperature of 1-1500° C. for 1 min to 24 hr under vacuum at a pressure of 10−2-10−7 Pa to form a product;
- cooling the annealed product to ambient temperature;
- filtering the annealed product with at least one filtering agent;
- rinsing the filtered product with at least one rinsing agent;
- and
- heating the rinsed product at a temperature of 1-200° C. for 1 min to 24 hr.
4 more elements
Dependencies are inferred from the claim text.