Assessment of bio-corrosion inhibition ability of Hafnium based cationic metallosurfactant on iron surface

Abstract

Hafnium based metallosurfactant has been evaluated as a greener and novel corrosion inhibitor for iron in saline and microbial conditions. A facile approach has been targeted by preparing Hafnium based surfactant bishexadecylpyridinium hafnium hexachlorate (HfCPC) using low cost ligand insertion method with easy work up procedure. The aggregation behaviour and antimicrobial activity of HfCPC against marine vibrio Halobacterium salinarium and Halococcus morrhuae were assessed. Electrochemical techniques were applied to check the dynamic corrosion process and inhibition efficiency. UV–vis spectroscopy, FE-SEM, XPS, contact angle goniometry were employed to grow mechanistic insight into inhibition behaviour. KI shows the synergistic inhibitory action with HfCPC.