"FUNCTIONALIZAREA IN PLASMA A NANOWALL-URILOR DE CARBON PENTRU CONTROLUL SUPERHIDROFOBIEI SI AL ATASARII NANOPARTICULELOR SI ENTITATILOR BIOLOGICE" |
TE_228 |
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Etapa I. Obtinerea de straturi de nanowall-uri de carbon functionalizate cu plasme floururate . Studiul proprietatilor de udare a suprafetelor straturilor de CNW functionalizate in relatie cu morfologia, nano-rugozitatea, compozitia chimica induse de tratamentul cu plasma
Imagini reprezentative pentru Etapa I a proiectului TE_228
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Schema instalatiei de depunere a CNW in jet de plasma la presiune scazuta |
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Morfologia si topografia CNW depuse in conditii standard |
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| Schema instalatiei de functionalizare a CNW in plasme fluorurate (Ar/SF6 si Ar/C2H2F4) |
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Film realizat pe parcursul masuratorilor de unghi de contact in cazul suprafetelor superhidrofobe rezultate in urma tratarii suprafetei CNW in plasma de Ar/SF6 |
Articol
Post-synthesis Carbon Nanowalls transformation under Hydrogen, Oxigen, Nitrogen, Tetrafluoroethane and Sulfur Hexafluoride plasma treatments (pdf)
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Scanning electron microscopy (SEM) images of as-deposited (a) and of plasma treated CNWs in: (b) H2, (c) O2 , (d) N2, (e) C2H2F4 and (f) SF6 plasma |
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Fourier Transform Infrared (FTIR) spectra of CNWs before (a) and after the treatment with different gas mixtures: Ar/H2 (b), Ar/O2 (c), Ar/N2 (d), Ar/C2H2F4 (e) and Ar/SF6 (f) |
| IR bands of carbon nanowalls as-deposited |
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Experimental [cm-1]
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Assignments
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Reference
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567
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In-plane bending C-H
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[36]
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644
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Torsion ring
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[36]
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688
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Ring deformation
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[37]
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1232
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Epoxy C-O stretching
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[38]
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1419
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C-C stretching in quinoide ring + C-H bending
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[39]
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1452
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C-C stretching + C-H bending
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[39]
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1495
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C-C stretching + C-H bending
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[39]
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1575
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C-C stretching in poly-aromatic structures
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[35]
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1697
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C=O stretching in carbonyl
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[37]
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