Corrosion Inhibition of Carbon Steel by LDH/Go Hybrid Intercalated With 2-Benzothiazolythio-Succinic Acid

Abstract

Layered double hydroxide/graphene oxide hybrid (LDH/GO) intercalated with corrosion inhibitor 2-benzothiazolylthio-succinic acid (BTSA) was prepared using co-precipitation method. The synthesized LDH/GO-BTSA was characterized by FTIR, XRD and SEM. The inhibitive action of LDH/GO-BTSA on carbon steel was evaluated and compared with LDH-BTSA by electrochemical measurement. It was shown that the GO and BTSA were intercalated in LDH structure. The obtained results showed that LDH/GO-BTSA is anodic corrosion inhibitors, and the inhibition efficiency was 94 % at concentration of 1 g/l.

Atmospheric Corrosion Resistance of Trivalent and Hexavalent Chrome Conversion Coating on Zinc Electrodeposits in Hanoi After 5 Years Natural Exposure

“…This results is in agreement with the corrosion inhibition effect of HTC-BSA and HTC-BSA/GO. HTC-BSA/GO gives higher inhibition efficiency than HTC-BSA [14]. The obtained results demonstrate that epoxy coating with HTC-BSA/GO provided higher protection performance than epoxy coatings with HTC-BSA.…”

“…For HTC-BSA, it is observed peaks attributed to Al-O and Zn-O variation at 630 cm −1 and 423 cm −1 , respectively [15]. Besides, the peaks related to the COOgroup of BSA also appear at 1580 cm −1 and 1423 cm −1 [14]. In the case of HTC-BSA/GO it can be seen all peaks characteristic HTC-BSA.…”

“…The rust creep from scribe of the blank coating was higher than the one of HTC-BSA and HTC-BSA/GO systems. The lower corrosion degree of samples with HTC-BSA and HTC-BSA/GO by comparison with the bank system can be explained the corrosion inhibition effect of HTC-BSA and HTC-BSA/GO at steel surface [14]. The lower rust creep from scribe for the case of HTC-BSA/GO by comparison with the one of HTC-BSA can be caused by the barrier effect of GO at the scratches.…”

“…A solvent free epoxy Epon 828 (Momentive) and Ancamine 2753 hardener were obtained from Air product. Graphene oxide was prepared in our laboratory using Hummer's procedure [14].…”

“…HTC-BSA/GO was also prepared and its inhibition effect on steel substrate was studied using electrochemical technique. It was found that intercalated GO enhanced inhibition effect of HTC-BSA [14].…”