Nanocellular high surface area material and methods for use and production thereof

• US 20090213529A1
• Filed: 04/14/2006
• Published: 08/27/2009
• Est. Priority Date: 04/14/2005
• Status: Abandoned Application

• Current Assignee: Drexel University
• Original Assignee: Drexel University
• Inventors: Dash, Rajan, Gogotsi, Yury, Yushin, Gleb, Chmiola, John
• Application Number:
  US11/911,248
• Publication Number:
  US 20090213529A1
• Time in Patent Office: Days
• US Class Current: 361/502
• CPC Class Codes: H01M 4/96 Carbon-based electrodes
• CPC Class Codes: Y02E 60/50 Fuel cells
• CPC Class Codes: Y10T 428/249978 Voids specified as micro

Abstract

Nanocellular high surface area materials of a carbon material with high surface area that is controllable and which exhibits high conductivity, controllable structure and a precisely controllable pore size and methods for production and use of these materials are provided.

Claims

1. A nanocellular high surface area material comprising a carbon material with high surface area that is controllable and which exhibits high conductivity and a precisely controllable pore size and structure.

2. A method for synthesis of a nanocellular high surface area carbon material with controllable porosity, structure and conductivity from inorganic carbon-containing precursor comprising removing a majority of non-carbon atoms from the inorganic carbon-containing precursor.

3. The method of claim 2 wherein the inorganic carbon-containing precursor comprises a compound based on a metal, metalloid or combination thereof selected from the group consisting of Ti, Zr, Hf, V, Ta, Nb, Mo, W, Fe, Al, Si, B, Ca and Cr.

4. The method of claim 2, where the inorganic carbon-containing precursor comprises a carbide, a mixture of carbides, a carbonitride, a mixture of carbonitrides or a mixture of carbides and carbonitrides.

5. The method of claim 2 wherein the inorganic carbide-containing precursor is amorphous, nanocrystalline, microcrystalline, or crystalline in structure.

6. The method of any claim 2 wherein the nanocellular high surface area carbon-containing material is synthesized from the inorganic carbon-containing precursor by thermo-chemical, chemical or thermal treatment of the inorganic carbon-containing precursor in a temperature range of 200-1200°

C.

7. The method of claim 2 wherein the nanocellular high surface area carbon-containing material is synthesized from the inorganic carbon-containing material by reacting the inorganic carbon-containing precursor with a halogen containing gas or gas mixture in the temperature range of 200-1200°

C.

8. The method of claim 7 wherein the halogen containing gas or gas mixture comprises chlorine.

9. The method of claim 7 further comprising treatment in a hydrogen containing gas or gas mixture at an elevated temperature.

10. The method of claim 2 wherein the inorganic carbon-containing precursor comprises particles with an average diameter ranging between 10 to 20,000 nanometers.

11. The method of claim 10 wherein the inorganic carbon-containing precursor comprises particles with an average diameter ranging between 1,000 to 20,000 nanometers.

12. The method of claim 10 wherein the inorganic carbon-containing precursor comprises particles with an average diameter ranging between 400 to 1,000 nanometers.

13. The method of claim 10 wherein the inorganic carbon-containing precursor comprises particles with an average diameter ranging between 10 to 400 nanometers.

16. A nanocellular high surface area carbon-containing material made according to the process of claim 2.

17. An electrode comprising the nanocellular high surface area carbon-containing material of claim 16.

18. An electrochemical energy storage device comprising the electrode of claim 17.

19. An electrical double layer capacitor comprising the electrode of claim 17.

14-15. -15. (canceled)