The Effects of Perfluoroalkyl and Alkyl Backbone Chains, Spacers, and Anchor Groups on the Performance of Organic Compounds as Corrosion Inhibitors for Aluminum Investigated Using an Integrative Experimental-Modeling Approach

The ability of surfactant-like compounds to inhibit the corrosion aluminum in NaCl solution was systematically investigated. basic idea this study scrutinize effect type backbone chain (alkyl and perfluoroalkyl), length (number carbon atoms 7, 10, 17), various anchor groups (carboxylic, thiol, imidazole) presence alkylene benzene spacers between perfluoroalkyl group. To tackle these effects, three model studies were designed for alkaline etched, superhydrophilic surface then approached experimentally by density functional theory modeling. This enabled us decouple adsorption affinity selected on hydroxylated from lateral intermolecular cohesive interactions hydrophobic chains. Fourteen used changes composition, wettability electrochemical barrier properties. For carboxylic group, are important properties also tuning surface. addition spacer significantly affects modified Thiol imidazole groups, however, not efficient inhibitors regardless