Alumina nanowire forests via unconventional anodization and super-repellency plus low adhesion to diverse liquids

Weici Wu; Xiaolong Wang; Daoai Wang; Miao Chen; Feng Zhou; Weimin Liu; Qunji Xue

doi:10.1039/B818633B

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Chemical Communications

Issue 9, 2009

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Alumina nanowire forests via unconventional anodization and super-repellency plus low adhesion to diverse liquids

Weici Wu , Xiaolong Wang , Daoai Wang , Miao Chen , Feng Zhou , Weimin Liu and Qunji Xue

Chem. Commun., 2009, 1043-1045

DOI: 10.1039/B818633B
Received 21 Oct 2008, Accepted 20 Jan 2009
First published on the web 02 Feb 2009

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Abstract
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Multiple facet supported alumina nanowires are produced very efficiently in a very short time via high field anodization; upon modification with perfluorosilane, the surface becomes super-repellent towards a broad range of liquids, which includes (salted) water, water emulsion, common organic liquids like glycerol and alkanes, and a variety of lubrication oils including ionic liquids, poly(α-olefin), polydimethylsiloxane oils etc.

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Supplementary Info

Fig. S1 Full XPS characterization of perfluorinated alumina. Fig. S2 Photographs of water and crude oil droplets on multiplyfolded aluminium surface
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Movie 1: water rolling off
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Movie 2: universal super-repellency
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Movie 3: liquids form globules upon heating
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Articles By

Weici Wu
Xiaolong Wang
Daoai Wang
Miao Chen
Feng Zhou
Weimin Liu
Qunji Xue

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Chemical Communications

Alumina nanowire forests via unconventional anodization and super-repellency plus low adhesion to diverse liquids

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