| 학회 |
한국재료학회 |
| 학술대회 |
2019년 봄 (05/15 ~ 05/17, 평창 알펜시아 리조트) |
| 권호 |
25권 1호 |
| 발표분야 |
G. 나노/박막 재료 분과 |
| 제목 |
Microstructural characterization and annealing effect of SWCNTs via arc-discharge technique |
| 초록 |
In order to remove the unreacted metal constituents and amorphous carbon impurities, a post-annealing process has been performed for high-purity single-walled carbon nanotubes (SWCNT). Comparaed to traditional processing techniques, this method involved three different gas atomospheres, such as chlorine, oxygen, and chlorine + oxygen gases, respectively, for efficient removal of impurities. the nanotubes showed the best characteristics when using a mixed gas of chlorine + oxygens. A series of haze meter, UV absorbance, SEM, TEM, and sheet resistance measurements revealed that the post-annealing procedd efficiently removed the unreacted metal and amphous carbon impurities from the bare SWCNTs. The high-purity SWCNTs revealed the best electrical conductivities. Such high-purity SWCNTs can be used in diverse carbon-based composites for increasing the reponse of gas sensors. |
| 저자 |
박수영1, 진창현2, 나한길3, 변영민4, 최선우5
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| 소속 |
1Department of Aviation Maintenance Engineering, 2Far East Univ., 3Chungbuk 27601, 4Republic of Korea, 5The Research Institute of Industrial Science |
| 키워드 |
SWCNT; heat treatment; arc-discharge; electrical conductivity
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| E-Mail |
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