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Corrosion protection of iron using porous anodic oxide/conducting polymer composite coatings

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Title: Corrosion protection of iron using porous anodic oxide/conducting polymer composite coatings
Authors: Konno, Yoshiki Browse this author
Tsuji, Etsushi Browse this author →KAKEN DB
Aoki, Yoshitaka Browse this author →KAKEN DB
Ohtsuka, Toshiaki Browse this author →KAKEN DB
Habazaki, Hiroki Browse this author →KAKEN DB
Issue Date: 2015
Publisher: Royal Society of Chemistry
Journal Title: Faraday discussions
Volume: 180
Start Page: 479
End Page: 493
Publisher DOI: 10.1039/c4fd00232f
PMID: 25893229
Abstract: Conducting polymers (CPs), including polypyrrole, have attracted attention for their potential in the protection of metals against corrosion; however, CP coatings have the limitation of poor adhesion to metal substrates. In this study, a composite coating, comprising a self-organized porous anodic oxide layer and a polypyrrole layer, has been developed on iron. Because of electropolymerization in the pores of the anodic oxide layer, the composite coating showed improved adhesion to the substrate along with prolonged corrosion protection in a NaCl aqueous corrosive environment. The anodic oxide layers are formed in a fluoride-containing organic electrolyte and contain a large amount of fluoride species. The removal of these fluoride species from the oxide layer and the metal/oxide interface region is crucial for improving the corrosion protection.
Type: article (author version)
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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