| 학회 |
한국화학공학회 |
| 학술대회 |
2002년 가을 (10/24 ~ 10/26, 서울대학교) |
| 권호 |
8권 2호, p.2313 |
| 발표분야 |
공업화학 |
| 제목 |
직경이 제어된 단일벽 탄소나노튜브의 촉매성장 |
| 초록 |
Single wall carbon nanotubes (SWNTs) were successfully produced by catalytic thermal decomposition of C2H2 at 800 oC over magnesia supported Co-Mo catalysts in a tubular flow reactor under an atmosphere of hydrogen flow. The loading amount of metals on magnesia support varies from 5 to 40 wt% with a 1:1 wt ratio of the two metals. Raman spectroscopy was exclusively used to characterize the growth of SWNTs. From radial breathing mode (RBM) frequencies of Raman spectrum it was revealed that bundle type SWNTs were grown with diameters ranging from 0.78 to 2.07 nm and SWNTs with thinner diameter become abundant for the catalysts having lower metal loading. Good quality and high density SWNTs was grown at the catalyst loading weight of 20 to 30 percent. Using these high performance bimetallic supported catalysts it is assumed that scale-up production method of SWNTs can be readily achieved with low cost. |
| 저자 |
사자한, 모영환, 남기석
|
| 소속 |
전북대 |
| 키워드 |
bimetallic catalyst; nanotube
|
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
