| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
고분자 구조 및 분석－Scattering & Spectroscopy |
| 제목 |
Investigation and Analysis of Damage on Highly Oriented Pyrolytic Graphite (HOPG) Produced by Sulfuric Acid and Nitric Acid |
| 초록 |
The oxidation of highly oriented pyrolytic graphite by chemical oxidants in air has been investigated.The oxidation of HOPG top surface was carried out by treating with H2SO4/HNO3 mixture.The samples for oxidation were prepared by molding in polyethylene.To evaluate the effects of oxidants on surface of graphite various techniques have been applied to study the damage on surface of HOPG. The oxidized surface of HOPG showed more roughness than the pristine HOPG. The damage to the surface of HOPG was investigated by using transmission electron microscopy and micro Raman. The cross-sectional TEM images indicated significant defects on the exposed surface of HOPG. The introduction of oxygen content was revealed by X-ray photoelectron spectroscopy and energy dispersive X-ray spectroscopy. The oxidized HOPG surface reached its oxygen content of 20.9% after 4 days of treatment. The results are supported by gradual increase of the intensity of D-band in Raman spectra with respect to time. |
| 저자 |
신연란, 백종범
|
| 소속 |
울산과학기술대 |
| 키워드 |
HOPG; Oxidation
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| E-Mail |
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