Influence of Hydroxyl Groups on the Inhibitive Corrosion of Gemini Surfactant for Carbon Steel
Chengxian Yin, Minjian Kong, Juantao Zhang, Yuan Wang, Qingwei Ma, Qibin Chen, Honglai Liu
Abstract
hydrochloric acid solution was investigated using the gravimetric method and various electrochemical techniques, together with scanning electron microscopy and energy-dispersive spectrometry. Results show that PDHDB always has a better inhibition performance relative to PDDB, which can be attributed to the introduction of hydroxyl groups at the hydrophilic headgroups, thereby causing an extra interaction between inhibitors and the metal surface and favoring its adsorption. These findings highlight that the modification to the headgroups of Gemini-type inhibitors may be another effective approach to improving their inhibition performance.
Topics & Concepts
AdsorptionHydrochloric acidPulmonary surfactantChemistryBromideCarbon steelCorrosionElectrochemistryGravimetric analysisMetalNuclear chemistryInorganic chemistryScanning electron microscopeOrganic chemistryMaterials scienceBiochemistryPhysical chemistryComposite materialElectrodeCorrosion Behavior and InhibitionConcrete Corrosion and DurabilityHydrogen embrittlement and corrosion behaviors in metals