Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1470395 | Corrosion Science | 2009 | 13 Pages |
Abstract
The synergistic inhibition effect of rare earth cerium(IV) ion and 3,4-dihydroxybenzaldehye (DHBA) on corrosion of cold rolled steel (CRS) in H2SO4 solution was first investigated by weight loss and potentiodynamic polarization methods. Effects of inhibitor concentration, temperature, immersion time and acid concentration on synergism are discussed in detail. The results reveal that DHBA has moderate inhibitive effect and its adsorption obeys Temkin adsorption isotherm. For the cerium(IV) ion, it has negligible effect. However, incorporation of Ce4+ with DHBA improves the inhibition performance significantly, and produces strong synergistic inhibition effect.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xianghong Li, Shuduan Deng, Hui Fu, Guannan Mu,