In situ AFM studies of the stability of MgO(1 0 0) in aqueous electrolytes
Source abstract
Abstract
Abstract The stability and dissolution of MgO(1 0 0) single crystal surfaces in alkaline solutions of NaClO4 and NaCl were investigated by means of in situ atomic force microscopy (AFM) and ex situ angle resolved X-ray photoelectron spectroscopy (AR-XPS). MgO surfaces showed higher resistance to dissolution in NaClO4 electrolyte due to the formation of a gel-like hydroxide layer. The emergence of rectangular/square formed pits oriented in the 〈1 1 0〉 directions during immersion in NaCl electrolytes at alkaline pH was observed. The results are discussed on the basis of a substitution of hydroxides by chlorides at the electrolyte/MgO interface.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Oxide Properties and Applications · Calcium Carbonate Crystallization and Inhibition · Minerals Flotation and Separation Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. Characterization of anodic films formed on AZ91D magnesium alloy10.1016/j.surfcoat.2004.03.010 ↗
2. A corrosion study of the main constituent phases of AZ91 magnesium alloys10.1016/S0010-938X(03)00109-4 ↗
3. Growth and characterization of Mg(OH)(2) film on magnesium alloy AZ3110.1016/j.apsusc.2011.02.017 ↗
4. Comparative study on the corrosion behavior of milled and unmilled magnesium by electrochemical impedance spectroscopy10.1016/j.corsci.2004.04.008 ↗
5. Corrosion behaviour of AZ21, AZ501 and AZ91 in sodium chloride10.1016/S0010-938X(98)00078-X ↗
6. Corrosion behaviour of magnesium/aluminium alloys in 3.5wt.% NaCl10.1016/j.corsci.2007.11.005 ↗
7. In vitro studies of biomedical magnesium alloys in a simulated physiological environment: a review10.1016/j.actbio.2010.12.004 ↗
8. chloride ion concentration and exposure time on the electrochemical corrosion behavior of AZ31B magnesium alloy
9. Influence of pH on the deterioration of plasma electrolytic oxidation coated AM50 magnesium alloy in NaCl solutions10.1016/j.corsci.2009.10.011 ↗
10. Metal deposits on well-ordered oxide films10.1016/S0079-6816(99)00012-X ↗
11. Mechanisms of acidic dissolution at the MgO(100) surface10.1016/S0039-6028(02)01977-5 ↗
12. Autocatalytic surface hydroxylation of MgO(100) terrace sites observed under ambient conditions10.1021/jp200235v ↗
13. Formation of hydroxyl and water layers on MgO films studied with ambient pressure XPS10.1016/j.susc.2010.10.004 ↗
14. Reaction of water with MgO(100) surfaces. Part II: Synchrotron photoemission studies of defective surfaces10.1016/S0039-6028(98)00445-2 ↗
15. Reaction of water with MgO(100) surfaces. Part I: Synchrotron X-ray photoemission studies of low-defect surfaces10.1016/S0039-6028(98)00444-0 ↗
16. Thickness-dependent hydroxylation of MgO(001) thin films10.1021/jp105294e ↗
17. Hydrated MgO smoke crystals from cubes to octahedra10.1016/j.cplett.2007.03.044 ↗
18. Combination of (100), (110) and (111) facets in MgO crystals shapes from dry to wet environment10.1039/b812376d ↗
19. Morphology of MgO smoke crystallites upon etching in wet environment10.1016/j.jcrysgro.2009.08.026 ↗
20. Molecular dynamics study of water adsorption structures on the MgO(100) surface10.1021/jp067651n ↗
21. PH-dependent structure and energetics of H2O/MgO(100)10.1016/j.susc.2012.01.018 ↗
22. Periclase surface hydroxylation during dissolution10.1016/0016-7037(95)00070-G ↗
23. Dissolution of magnesium oxide in aqueous acid: an atomic force microscopy study10.1021/jp982260x ↗
24. Dissolution of the periclase (001) surface: a scanning force microscope study10.2138/am-1999-1-216 ↗
25. Chemisorption of HCl to the MgO(001) surface: a DFT study10.1039/b608719a ↗
26. DFT study of the water/MgO(100) interface in acidic and basic media10.1016/j.susc.2005.10.033 ↗
27. Self-inhibition of water dissociation on magnesium oxide surfaces10.1016/S0039-6028(99)00410-0 ↗
28. Water chemisorption and reconstruction of the MgO surface10.1103/PhysRevB.52.10823 ↗
29. Ab initio modelling of localized corrosion: study of the role of surface steps in the interaction of chlorides with passivated nickel surfaces10.1016/j.corsci.2009.05.048 ↗
30. Preparation and characterization of MgO stepped surfaces10.1016/j.susc.2006.11.066 ↗
31. XPS and AFM investigations of annealing induced surface modifications of MgO single crystals10.1016/S0022-0248(02)00852-7 ↗
32. Equation of state for small, large, polydisperse, and associating molecules: extension to fluid mixtures10.1021/ie00056a050 ↗
33. Preparation and characterization of MgO(100) surfaces10.1016/S0039-6028(97)00185-4 ↗
34. Surface chemistry and nonadecanoic acid adsorbate layers on TiO2(100) surfaces prepared at ambient conditions10.1016/j.susc.2012.05.025 ↗
35. Reaction of CO2 with MgO(100) surfaces10.1142/S0218625X99001396 ↗
36. The kinetics and mechanism of MgO dissolution10.1016/S0009-2614(99)00909-4 ↗
37. Stabilization and acidic dissolution mechanism of single-crystalline ZnO(0001) surfaces in electrolytes studied by in-situ AFM imaging and ex-situ LEED10.1021/la7037697 ↗
38. In situ study of the polar ZnO(0001)–Zn surface in alkaline electrolytes10.1021/jp1047024 ↗
39. Some particularities of the corrosion behaviour of Mg–Zn–Mn–Si–Ca alloys in alkaline chloride solutions10.1016/j.corsci.2010.03.017 ↗