Implantation of amino functionality into amorphous carbon sheet surfaces by NH3 plasma

Amorphous carbon (AC) sheet surfaces were modified with ammonia (NH3) plasma in order to form primary amino groups on AC surfaces. The NH3 plasma modification formed both nitrogen- and oxygen-containing groups on the AC sheet surfaces, and the contact angle of water against the modified AC surfaces...

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Bibliographic Details
Published in:Carbon (New York) 2007-04, Vol.45 (4), p.797-804
Main Authors: INAGAKI, N, NARUSHIMA, K, HASHIMOTO, H, TAMURA, K
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Materials science
Physics
Specific materials
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Summary:Amorphous carbon (AC) sheet surfaces were modified with ammonia (NH3) plasma in order to form primary amino groups on AC surfaces. The NH3 plasma modification formed both nitrogen- and oxygen-containing groups on the AC sheet surfaces, and the contact angle of water against the modified AC surfaces decreased from 76 deg to 64 deg -56 deg . The formation of primary amino groups preferred NH3 plasma operated at a low rf power (5-10W) to that at a high power. The concentration of primary amino groups was strongly influenced by how much rf power the NH3 plasma was operated. The NH3 plasma operated at 10W was a preferable condition for the formation of primary amino groups on the AC sheet surfaces, and their concentration was 1.3-1.4 N(amino)-atoms/100 C-atoms.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2006.11.016