Magnetite-facilitated growth of a layered double hydroxide film on steel for improved anti-corrosion
Source abstract
Abstract
Layered double hydroxide (LDH) grown in situ on steel is an effective protective anti-corrosion coating. However, improving the anti-corrosion performance of LDH films through microstructure regulation is challenging owing to the limited understanding of the in situ growth mechanism. In this study, density functional theory (DFT) calculations revealed that Al(OH) 3 could strongly adsorb to the (004) lattice plane of Fe 3O 4. Therefore, Fe 3O 4 was introduced on the steel surface through pretreatment with nitric acid. A dense and tightly bonded MgAl-CO 3 2−-LDH film was successfully grown in situ on the surface of the Fe 3O 4 -modified steel, and the film exhibited a high corrosion protection efficiency of 99.5%. The Fe 3O 4 played a vital role in the growth process of the MgAl-LDH film. The Al(OH) 3 and Al-rich LDH with vacant sites provided dense nucleation sites for the growth of MgAl-LDH, which was the key to the formation of an effective film. This work elucidates the in situ growth mechanism of the LDH film on steel and provides an alternative method for improving the anti-corrosion performance of LDH films.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Layered Double Hydroxides Synthesis and Applications · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
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1. The effect of interlayer spacing on the inhibitor release capability of layered double hydroxide based nanocontainers10.1016/j.jclepro.2019.119676 ↗
2. Multifunctional inhibition based on layered double hydroxides to comprehensively control corrosion of carbon steel in concrete10.1016/j.corsci.2017.06.026 ↗
3. Enhanced corrosion resistance of superhydrophobic layered double hydroxide films with long-term stability on Al substrate10.1021/acsami.8b02280 ↗
4. A Raman spectroscopic study of alunites10.1016/j.molstruc.2005.10.003 ↗
5. A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu10.1063/1.3382344 ↗
6. Layered double hydroxide films: synthesis, properties and applications10.1039/c0cc00313a ↗
7. Enhanced corrosion resistance and applicability of Mg/Al-CO32− layered double hydroxide film on Q235 steel substrate10.1016/j.conbuildmat.2021.122259 ↗
8. Effect of NO3−intercalation on corrosion resistance of conversion coated Zn-Al-CO3LDHs on electrogalvanized steel10.1149/2.0091809jes ↗
9. In situ kinetics studies of Zn-Al LDH intercalation with corrosion related species10.1039/D0CP01765E ↗
10. Fabrication of NiFe layered double hydroxide/reduced graphene oxide (NiFe-LDH/rGO) nanocomposite with enhanced sonophotocatalytic activity for the degradation of moxifloxacin10.1016/j.cej.2019.122102 ↗
11. FT-Raman and FT-IR spectroscopic study of synthetic Mg/Zn/Al-hydrotalcites10.1002/jrs.1244 ↗
12. From ultrasoft pseudopotentials to the projector augmented-wave method10.1103/PhysRevB.59.1758 ↗
13. Development of a thiophene derivative modified LDH coating for Mg alloy corrosion protection10.1016/j.electacta.2019.135186 ↗
14. Characterization of Mg,Al-hydrotalcite conversion film on Mg alloy and Cl− and CO32- anion-exchangeability of the film in a corrosive environment10.1016/j.scriptamat.2007.02.020 ↗
15. Direct synthesis of layered double hydroxides monolayer nanosheets for co-assembly of nanobrick wall hybrid film with excellent corrosion resistance10.1016/j.apsusc.2019.06.295 ↗
16. Designing novel organic inhibitor loaded MgAl-LDHs nanocontainer for enhanced corrosion resistance10.1016/j.cej.2020.127367 ↗
17. A comparative study of the lattice structure, optical band gap, electrical conductivity and polarization at different stages of the heat treatment of chemical routed Al(OH)310.1016/j.ceramint.2021.12.282 ↗
18. Synthesis and Raman spectroscopic characterisation of hydrotalcite with CO32− and VO3− anions in the interlayer10.1002/jrs.1820 ↗
19. Generalized gradient approximation made simple10.1103/PhysRevLett.77.3865 ↗
20. Acid activation–based growth behaviors and enhanced corrosion resistance of layer-by-layer Mg/Al-CO32– layered double hydroxide film on a steel substrate10.1016/j.clay.2022.106589 ↗
21. Investigation of zinc as a scale and corrosion inhibitor of carbon steel in artificial seawater10.1016/j.corsci.2019.03.045 ↗
22. Chemical modification of hydrotalcite coating for enhanced corrosion resistance10.1016/j.corsci.2015.01.033 ↗
23. Duplex coating combining layered double hydroxide and 8-quinolinol layers on Mg alloy for corrosion protection10.1016/j.electacta.2018.07.113 ↗
24. Doublely-doped Mg-Al-Ce-V2O74- LDH composite film on magnesium alloy AZ31 for anticorrosion10.1016/j.jmst.2019.09.031 ↗
25. Aminobenzoate modified MgAl hydrotalcites as a novel smart additive of reinforced concrete for anticorrosion applications10.1016/j.conbuildmat.2013.06.049 ↗
26. In-situ growth of NiAl-layered double hydroxide on AZ31 Mg alloy towards enhanced corrosion protection
27. Boehmite and gibbsite nanoplates for the synthesis of advanced alumina products10.1021/acsanm.8b01969 ↗
28. Mechanically robust superhydrophobic porous anodized AA5083 for marine corrosion protection10.1016/j.corsci.2019.06.031 ↗
29. Ultrahigh anti-corrosion performance of polymer-based coating filled with a novel micro network nanofiller10.1016/j.corsci.2021.109685 ↗
30. In situ growth of corrosion resistant Mg-Fe layered double hydroxide film on Q235 steel10.1016/j.jcis.2021.12.018 ↗