Facile preparation of self-healing superhydrophobic CeO2 surface by electrochemical processes

Nakayama, Katsutoshi; Hiraga, Takuya; Zhu, Chunyu; Tsuji, Etsushi; Aoki, Yoshitaka; Habazaki, Hiroki

doi:10.1016/j.apsusc.2017.07.012


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Facile preparation of self-healing superhydrophobic CeO2 surface by electrochemical processes

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/76222

Title:	Facile preparation of self-healing superhydrophobic CeO2 surface by electrochemical processes
Authors:	Nakayama, Katsutoshi Browse this author
	Hiraga, Takuya Browse this author
	Zhu, Chunyu Browse this author
	Tsuji, Etsushi Browse this author
	Aoki, Yoshitaka Browse this author
	Habazaki, Hiroki Browse this author →KAKEN DB
Keywords:	CeO2 coating
	Superhydrophobicity
	Anodic deposition
	Self-healing ability
Issue Date:	30-Nov-2017
Publisher:	Elsevier
Journal Title:	Applied surface science
Volume:	423
Start Page:	968
End Page:	976
Publisher DOI:	10.1016/j.apsusc.2017.07.012
Abstract:	Herein we report simple electrochemical processes to fabricate a self-healing superhydrophobic CeO2 coating on Type 304 stainless steel. The CeO2 surface anodically deposited on flat stainless steel surface is hydrophilic, although high temperature-sintered and sputter-deposited CeO2 surface was reported to be hydrophobic. The anodically deposited hydrophilic CeO2 surface is transformed to hydrophobic during air exposure. Specific accumulation of contaminant hydrocarbon on the CeO2 surface is responsible for the transformation to hydrophobic state. The deposition of CeO2 on hierarchically rough stainless steel surface produces superhydrophobic CeO2 surface, which also shows self-healing ability; the surface changes to superhydrophilic after oxygen plasma treatment but superhydrophobic state is recovered repeatedly by air exposure. This work provides a facile method for preparing a self-healing superhydrophobic surface using practical electrochemical processes. (C) 2017 Elsevier B.V. All rights reserved.
Rights:	© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Rights:	http://creativecommons.org/licenses/by-nc-nd/4.0/
Type:	article (author version)
URI:	http://hdl.handle.net/2115/76222
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 幅崎浩樹

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