Process for producing carbon nanofibers and/or carbon nanotubes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-021/18
C10G-027/00
C10G-049/06
C10G-049/02
D01F-009/127
D01F-009/16
B01J-023/40
B01J-023/70
B01J-027/20
C01B-032/16
B01J-037/08
B01J-037/02
B01J-023/16
B01J-023/745
B01J-023/755
B01J-035/06
C01B-032/907
출원번호
US-0485642
(2014-09-12)
등록번호
US-10010867
(2018-07-03)
우선권정보
EP-09153958 (2009-02-27)
발명자
/ 주소
Hoekstra, Jacobus
Geus, John Wilhelm
Jenneskens, Leonardus Wijnand
출원인 / 주소
BASF CORPORATION
대리인 / 주소
Lowenstein Sandler LLP
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
The invention is directed to a process for producing carbon nanofibers and/or carbon nanotubes, which process comprises pyrolyzing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a compound of an element or elements, the metal or alloy, respectively, of which is
The invention is directed to a process for producing carbon nanofibers and/or carbon nanotubes, which process comprises pyrolyzing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a compound of an element or elements, the metal or alloy, respectively, of which is capable of forming carbides, in a substantially oxygen free, volatile silicon compound containing atmosphere, optionally in the presence of a carbon compound.
대표청구항▼
1. A process for producing carbon nano fibers and/or tubes, the process comprising: pyrolyzing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a metal compound or combination of metal compounds, which are capable of forming carbides, in the presence of volatile
1. A process for producing carbon nano fibers and/or tubes, the process comprising: pyrolyzing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a metal compound or combination of metal compounds, which are capable of forming carbides, in the presence of volatile silicon compounds in a substantially oxygen free, inert stationary atmosphere, optionally in the presence of a carbon compound. 2. The process according to claim 1, wherein the said substrate is selected from microcrystalline cellulose, sugar, or a mixture of sugar and microcrystalline cellulose, and soy meal. 3. The process according to claim 1, wherein the substrate comprises carbonaceous bodies produced by a hydrothermal treatment of agricultural materials such as sugars, starch, soy meal, (hemi)cellulose; dehydrated products of the above compounds. 4. The process according to claim 1, wherein the substrate is impregnated with a compound of nickel, cobalt, iron and/or molybdenum, followed by drying and pyrolyzing. 5. The process according to claim 1, wherein the said substrate is pyrolysed in the presence of a silicon rubber compound. 6. The process according to claim 1, wherein the said silicon compound is an alkyl siloxane. 7. The process according to claim 6, wherein the said siloxane compound is a trimer of dimethyl siloxane. 8. A process according to claim 7, wherein: the pyrolyzing is at a temperature between 500 and 1000° C. for a period between 5 min and 5 hours; andthe atmosphere is substantially free of carbon compounds. 9. The process according to claim 1, wherein the pyrolyzing is at a temperature between 500 and 1000° C. for a period between 5 min and 5 hours. 10. A process according to claim 9, wherein: the substrate comprises carbonaceous bodies produced by a hydrothermal treatment of agricultural materials, such as, sugars, starch, soy meal, (hemi)cellulose, as well as dehydrated products of the above compounds, such as, furfural and 2-hydroxyfurfural;the substrate is impregnated with a compound of nickel, cobalt, iron and/or molybdenum, followed by drying and pyrolyzing;and the said substrate is pyrolyzed in the presence of a silicon rubber compound. 11. The process according to claim 1, wherein the atmosphere is substantially free of carbon compounds. 12. The process according to claim 1, wherein the atmosphere further contains at least one carbon compound selected from the group consisting of toluene, CO, CO/H2 mixtures, CH4, C2H4, lower alkanes, alkylenes, alcohols, alkyns, and aromatic compounds.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (1)
Yamamoto Akira (Nagoya JPX), Process for preparing silicon carbide whiskers.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.