Abstract
The bi-functional inhibitor cerium dibutylphosphate (Ce(dbp)3) was loaded onto the synthesized 3-aminopropyl-triethoxysilane (APTES)-modified GO via the chelation of amine groups with Ce3+ cations to obtain GO@APTES-Ce(dbp)3 (GAC) two-dimensional nanocomposites. The pH-responsive release of inhibitor Ce(dbp)3 from GAC nanocomposites at different pH was investigated through Quantum chemical calculation and UV–vis spectra. Scanning Vibrating Electrode Technique and Electrochemical impedance spectroscopy results demonstrated that GAC nanocomposites provide an excellent corrosion protection property through the synergistic effect of the self-healing performance of bi-functional inhibitor Ce(dbp)3 and the barrier property originated from 2D structure of GAC nanocomposites.
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