Enhanced corrosion protection by Al surface immobilization of in-situ grown layered double hydroxide films co-intercalated with inhibitors and low surface energy species

QC 20200424
In this work, a novel in-situ grown layered double hydroxide (LDH) film co-intercalated with inhibitors (vanadates) and low surface energy substance (laurates) was immobilized on Al substrates. A long-term monitoring of electrochemical impedance spectra (EIS) of the various samples in 3.5 wt.% NaCl solution demonstrated the synergetic protection of the intercalated two functional species. Meanwhile, the X-ray diffraction (XRD) result of the samples after immersion in NaCl solution for a long time presented the anion-exchange process between vanadates/laurates and chlorides. The synergetic effect of the two species loaded film significantly contributed to the enhanced long-term corrosion protection of aluminum.

TEKNIK OCH TEKNOLOGIER Materialteknik Bearbetnings-, yt- och fogningsteknik hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Manufacturing, Surface and Joining Technology hsv//eng
Aluminum
EIS
Interfaces
Neutral inhibition
XRD
Aluminum corrosion
Electrochemical corrosion
Interfaces (materials)
Interfacial energy
Sodium chloride
Transition metal compounds
X ray diffraction
Electrochemical impedance spectra
Functional species
Layered double hydroxides
Long term monitoring
Low surface energy
Neutral inhibitions
Surface immobilization
Synergetic effect
Corrosion protection

Av författaren/redakt...: Cao, Y.; Zheng, D.; Luo, J.; Zhang, Fan; Wang, C.; Dong, S.; visa fler...; Ma, Y.; Liang, Z.; Lin, C.; visa färre...

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