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Inhibition of aluminum alloy corrosion in electrolytes by self‐assembled fluorophosphonic acid molecular layer
Author(s) -
Telegdi J.,
Luciano G.,
Mahanty S.,
Abohalkuma T.
Publication year - 2016
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.201508792
Subject(s) - materials science , wetting , alloy , electrochemistry , corrosion , monolayer , adsorption , chemical engineering , layer (electronics) , aluminium , contact angle , electrolyte , self assembled monolayer , deposition (geology) , atomic force microscopy , in situ , metallurgy , nanotechnology , composite material , chemistry , electrode , organic chemistry , paleontology , sediment , engineering , biology
This paper presents the use of self‐assembled molecular (SAM) layers of fluorophosphonic acids developed on aluminum surface. The SAM monolayers were adsorbed from ethanol solution, characterized by surface morphology visualized by atomic force microscopy, and by the wettability by contact angle measurements. The anti‐corrosion efficiency of the nanolayers was determined by ex situ AFM measurements and by electrochemical techniques, which indicated the importance of the fluorophosphonic acid concentration and of the film formation time in the molecular deposition process. The morphological change with or without nanolayers caused by the corrosive environment was in accordance with the electrochemical results.