A simple 鈥渢wo foil鈥?approach to the fabrication of hierarchical superhydrophobic surfaces

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• 作者：L. Xu^a ; L.M. Dong^b ; ; W. Li^a ; ^c ; ^{wenl@ualberta.ca}
• 关键词：Superhydrophobic ; Contact angle ; Bayerite ; Two foil method ; Hierarchical nanorods
• 刊名：Colloids and Surfaces A ; Physicochemical and Engineering Aspects
• 出版年：2012
• 期刊代码：22_09277757
• 类别：ch
• 出版时间：20 June, 2012
• 卷：404
• 期：Complete
• 页码：12-16
• 文件大小：958 K

摘要

Hierarchical superhydrophobic surfaces were prepared using a simple 鈥渢wo foil鈥?method, which employed an interfacial reaction between an aluminum foil and a copper foil in the ammonia solution. The results from the scanning electron microscopy observations indicated that the biomimic surfaces composed of bayerite nanorods and hierarchical structures, and the X-ray diffraction patterns confirmed that the formed nanorods were the crystallized bayerites. Such bayerite surfaces can be further modified with stearic acid, leading to the superhydrophobicity with a contact angle of 165.14掳 and very low sliding angle.