- Tytuł:
- Oxidation Studies of the Graphite Surface by Scanning Tunneling Microscopy and Photoelectron Spectroscopy
- Autorzy:
-
Klusek, Z.
Phaner, M.
Krapf, P.
Porte, L. - Powiązania:
- https://bibliotekanauki.pl/articles/1931811.pdf
- Data publikacji:
- 1994-12
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
61.16.Ch
33.60.Fy - Opis:
- Scanning tunneling microscopy and spectroscopy and X-ray photoelectron spectroscopy were used to study oxidation effects of nitric acid on highly oriented pyrolytic graphite surface. This treatment was performed at different temperatures and etching times with the aim of realizing local binding sites on the surface without creating deep defects. Then these three technics were found in good agreement to characterize the weakly oxidized surface. A wavy structure different from pure graphite at atomic scale was imaged by scanning tunneling microscopy. This modification was correlated to the presence of carboxylic groups on the surface revealed by X-ray photoelectron spectroscopy. Both spectroscopies of scanning tunneling and X-ray photoelectron demonstrated the vanishing of π bands characteristic from sp$\text{}^{2}$ graphitic hybridization. This was attributed to dehybridization corresponding to new bondings of the graphite carbons in the carboxylic groups.
- Źródło:
-
Acta Physica Polonica A; 1994, 86, 6; 947-954
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł