Method of making activated nano-porous carbon
AssigneeFarad Power, Inc.
InventorShantanu Mitra
Life of this patent
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Abstract
An activated nano-porous carbon is produced using a liquid organic compound as a starting material. A combination of the liquid organic compound with organic acids is mixed with conductive carbon powder and polymerized. The polymerized material is then carbonized and activated using physical or chemical methods. The activated nano-porous carbon obtained using this method has been used to fabricate EDLC devices. The carbon has also shown large surface area (up to ˜2000 m2/gm, depending on the degree of activation) and can be used for various other activated carbon applications.
Claims20
A method of producing an activated nano-porous carbon, comprising:
- a) mixing a liquid organic compound, wherein the liquid organic compound is at least one of a furfuryl-functional-group compound, with an organic acid catalyst and an additive to make a mixture;
- b) heating the mixture to make a solid polymerized material;
- c) carbonizing the solid polymerized material by heating at a controlled temperature to drive out all the volatile compounds to form a carbonized material;
- and
- d) activating the carbonized material in a controlled environment to form the activated nano-porous carbon to be used in an electric double layer capacitor electrode, liquid and gas phase filtration, purification and storage applications.
A method of producing an activated nano-porous carbon, comprising:
- a) mixing a liquid organic compound, wherein the liquid organic compound is at least one of a furfuryl-functional-group compound, with an additive, wherein the additive is a carbon black, to make a mixture;
- b) heating the mixture to make a solid polymerized material;
- c) carbonizing the solid polymerized material by heating at a controlled temperature to drive out all the volatile compounds to form a carbonized material;
- and
- d) activating the carbonized material in a controlled environment to form the activated nano-porous carbon.
A method of making an activated nano porous carbon, comprising:
- a) mixing a furfuryl alcohol with an organic solvent, wherein the organic solvent is an acetone, to make a mixture;
- b) adding a combination of organic acids and carbon black to the mixture;
- c) polymerizing the mixture to form a solid polymerized material under atmospheric conditions;
- d) heating the solid polymerized material between 600° C.-800° C. to make a carbonized material;
- and
- e) carbonizing and activating are performed together in a controlled environment, wherein the controlled environment is a gas, wherein the gas is at least one of a nitrogen, argon, carbon dioxide and steam.
Dependencies are inferred from the claim text.