Superhydrophilicity on nano-rough carbon surfaces achieved by hyperthermal oxygen-atom beam exposure

Hiroshi Kinoshita, Takashi Nakayama, Naohiro Matsumoto, Nobuo Ohmae

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In order to investigate a method to increase hydrophilicity on nano-rough carbon surfaces, a nano-rough surface of C60 film and an atomically flat surface of highly oriented pyrolytic graphite (HOPG) were oxidized by hyperthermal oxygen-atom beam exposure and the hydrophilicities of the surfaces were investigated. Superhydrophilicity were achieved on these exposed carbon surfaces, which had low O/C ratio of approximately 28% and surface roughness (Ra) of approximately 3 nm. The direct oxidations on sp2 bonded carbon atoms (basal plane) of these two carbon materials by the exposure of hyperthermal O-atom beam would contribute the superhydrophilicity.

Original languageEnglish
Pages (from-to)3388-3391
Number of pages4
JournalCarbon
Volume49
Issue number10
DOIs
Publication statusPublished - Aug 2011

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Carbon
Oxygen
Atoms
Hydrophilicity
Graphite
Surface roughness
Oxidation

ASJC Scopus subject areas

  • Chemistry(all)

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Superhydrophilicity on nano-rough carbon surfaces achieved by hyperthermal oxygen-atom beam exposure. / Kinoshita, Hiroshi; Nakayama, Takashi; Matsumoto, Naohiro; Ohmae, Nobuo.

In: Carbon, Vol. 49, No. 10, 08.2011, p. 3388-3391.

Research output: Contribution to journalArticle

Kinoshita, Hiroshi ; Nakayama, Takashi ; Matsumoto, Naohiro ; Ohmae, Nobuo. / Superhydrophilicity on nano-rough carbon surfaces achieved by hyperthermal oxygen-atom beam exposure. In: Carbon. 2011 ; Vol. 49, No. 10. pp. 3388-3391.
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