期刊
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
卷 6, 期 -, 页码 353-360出版社
BEILSTEIN-INSTITUT
DOI: 10.3762/bjnano.6.34
关键词
hierarchical structures; hydrophobic surfaces; multi-walled carbon nanotube; single-walled carbon nanotube; wetting transitions
资金
- European Office of Aerospace Research and Development (EOARD) through the Air Force Office of Scientific Research Material Command, USAF [FA9550-14-1-0047]
Self-assembled hierarchical solid surfaces are very interesting for wetting phenomena, as observed in a variety of natural and artificial surfaces. Here, we report single-walled (SWCNT) and multi-walled carbon nanotube (MWCNT) thin films realized by a simple, rapid, reproducible, and inexpensive filtration process from an aqueous dispersion, that was deposited at room temperature by a dry-transfer printing method on glass. Furthermore, the investigation of carbon nanotube films through scanning electron microscopy (SEM) reveals the multi-scale hierarchical morphology of the self-assembled carbon nanotube random networks. Moreover, contact angle measurements show that hierarchical SWCNT/MWCNT composite surfaces exhibit a higher hydrophobicity (contact angles of up to 137 degrees) than bare SWCNT (110 degrees) and MWCNT (97 degrees) coatings, thereby confirming the enhancement produced by the surface hierarchical morphology.
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