Molybdate intercalated hydrotalcite/graphene oxide composite as corrosion inhibitor for carbon steel

Nguyen, T.; Nguyen, A.; Tran, B.; Vu, K.; Tran, D.; Phan, T.; Scharnagl, N.; Zheludkevich, M.; To, T.

Journalpaper

Molybdate intercalated hydrotalcite/graphene oxide composite as corrosion inhibitor for carbon steel

Abstract

Molybdate intercalated hydrotalcite/graphene oxide composite (HT-MoO4/GO) as corrosion inhibitor for carbon steel was synthesized and characterized. The influence of HT-MoO4/GO on corrosion resistance of waterborne epoxy coating applied on carbon steel was investigated. The results showed that hydrotalcite containing molybdate was formed on GO surface and the molybdate content in HT-MoO4/GO was 15.3%. HT-MoO4/GO provided both anodic and cathodic inhibition effects for carbon steel with an efficiency of 96%. The corrosion inhibition of HT-MoO4/GO depended not only on the inhibition effect of released molybdate but also on the deposition of HT-MoO4/GO particles on the steel surface. HT-MoO4/GO at 1 wt% concentration improved corrosion resistance of waterborne epoxy coatings. The presence of GO increased the effects of HT-MoO4 on protection properties of waterborne epoxy coatings.

DOI Link to Publication

URL: https://publications.hereon.de/id/39753/
Authors:Nguyen, T., Nguyen, A., Tran, B., Vu, K., Tran, D., Phan, T., Scharnagl, N., Zheludkevich, M., To, T.
Year:2020
In: Surface and Coatings Technology
Volume:399
Pages:126165
Publisher:Elsevier, Amsterdam
Type:Journalpaper
ISSN: 0257-8972
Cite as: Nguyen, T.; Nguyen, A.; Tran, B.; Vu, K.; Tran, D.; Phan, T.; Scharnagl, N.; Zheludkevich, M.; To, T.: Molybdate intercalated hydrotalcite/graphene oxide composite as corrosion inhibitor for carbon steel. In: Surface and Coatings Technology. Vol. 399 (2020) 126165. (DOI: /10.1016/j.surfcoat.2020.126165)