Nanostructured photocatalytic coatings for corrosion protection and surface repair Conference Paper

abstract

• Corrosion is one of the most destructive processes in materials induced by environment. Protection and repair of metallic surfaces are major challenges in many engineering applications. We report a novel polyelectrolyte nanostructured coating incorporating the corrosion inhibitor, 8-hydroxyquinoline (8-HQ), into titanium dioxide (TiO2) nanoparticles (NPs). The potentiodynamic polarization measurements and real-time electrochemical impedance spectroscopy (EIS) monitoring demonstrated that the nanostructured coating protected aluminum (Al) from corrosion. Photocatalytic TiO2 was able to release incorporated 8-HQ only with the exposure to UV light resulting in a self-healing effect. Real-time EIS results showed that a new passivated layer was formed after 8-HQ molecules were released. The research in interfaces brings insights in understanding new aspects of corrosion and surface repair. 2013.

authors

• Liang, Hong

published proceedings

• SURFACE & COATINGS TECHNOLOGY

author list (cited authors)

• He, X., Chiu, C., Esmacher, M. J., & Liang, H.

citation count

• 25

complete list of authors

• He, Xingliang||Chiu, Chengwei||Esmacher, Mel J||Liang, Hong

publication date

• December 2013

publisher

• Elsevier  Publisher

published in

• Surface and Coatings Technology  Journal

keywords

• Corrosion Protection
• EIS
• Nanostructured Coating
• Surface Reconstruction

Digital Object Identifier (DOI)

• 10.1016/j.surfcoat.2013.06.038

start page

• 320

end page

• 327

volume

• 237

URL

• http://dx.doi.org/10.1016/j.surfcoat.2013.06.038

user-defined tag

• 14 Life Below Water