IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0786652
(2004-02-25)
|
| 등록번호 |
US-7390441
(2008-06-24)
|
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
- Columbian Chemicals Company
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
5 인용 특허 :
64 |
초록
▼
A composition comprising particulate carbonaceous material and a sulfonated conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode assemblies, and fuel ce
A composition comprising particulate carbonaceous material and a sulfonated conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode assemblies, and fuel cells. A method for preparing the composition comprises oxidatively polymerizing with ozone a monomer of a conducting polymer containing hetero atoms in the presence of a carbonaceous material and sulfonating the polymer or the monomer. The method grafts the sulfonated conducting polymer to the carbonaceous material. The method can further comprise metallizing the polymer-grafted carbonaceous material.
대표청구항
▼
What is claimed is: 1. A method for preparing a carbon composition with enhanced electronic and protonic conductivity comprising oxidatively polymerizing with an oxidizing agent comprising ozone a monomer of a conducting polymer containing hetero atoms with particulate carbonaceous material to form
What is claimed is: 1. A method for preparing a carbon composition with enhanced electronic and protonic conductivity comprising oxidatively polymerizing with an oxidizing agent comprising ozone a monomer of a conducting polymer containing hetero atoms with particulate carbonaceous material to form a conducting polymer-grafted carbonaceous material, wherein either the monomer is sulfonated or the polymer is subsequently sulfonated, to thereby produce a sulfonated conducting polymer-grafted carbonaceous material; and metallizing the conducting polymer-grafted carbonaceous material. 2. The method of claim 1, wherein the carbonaceous material is carbon black, graphite, nanocarbons, fullerenes, fullerenic material, finely divided carbon, or mixtures thereof. 3. The method of claim 1, wherein the carbonaceous material is carbon black. 4. The method of claim 1, wherein the monomer of a conducting polymer is an amino aryl or a nitrogen heterocycle. 5. The method of claim 1, wherein the oxidatively polymerizing comprises adding ozone to a mixture of the carbonaceous material and the monomer of the conducting polymer. 6. The method of claim 5, wherein the mixture of the carbonaceous material and the monomer of the conducting polymer further comprises an acid solvent to form a slightly acidic environment. 7. The method of claim 6, wherein the slightly acidic environment is a pH of about less than 7. 8. The method of claim 6, wherein the slightly acidic environment is a pH of about 3 to about 4. 9. The method of claim 1, wherein the conducting polymer is polyaniline, polypyrrole, polyfuran, polythiophene, poly(p-phenylene-oxide), poly(p-phenylene-sulfide), substituted conducting polymers, or a mixture thereof. 10. The method of claim 1, wherein the polymer is directly sulfonated after oxidatively polymerizing the monomer with the carbonaceous material. 11. The method of claim 1, wherein the monomer is a sulfonated monomer of the conducting polymer. 12. The method claim 10, wherein the direct sulfonation is by addition of a sulfonating agent. 13. The method claim 12, wherein the sulfonating agent is chlorosulfonic acid. 14. The method claim 12, wherein the sulfonating agent is acetylsulfonic acid. 15. The method of claim 1, wherein the metallizing comprises adding a metal-containing material to the conducting polymer-grafted carbonaceous material. 16. The method of claim 15, wherein the metallizing further comprises adding a reducing agent. 17. The method of claim 1, wherein the metallizing is plantinizing. 18. The method of claim 16, wherein the reducing agent is formaldehyde, sodium borohydride, hydrogen, hydrazine, hydroxyl amine, or a mixture of reducing agents. 19. The method of claim 15, wherein the metal-containing material is chloroplatinic acid, platinum nitrate, platinum halide, platinum cyanide, platinum sulfide, organoplatinum salt, or a mixture thereof.
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