Corrigendum to “Anodic oxidation of Mg–Cu and Mg–Zn alloys” [Electrochim. Acta 49 (2004) 899–904]

Effect of (NaPO3)6 concentrations on corrosion resistance of plasma electrolytic oxidation coatings formed on AZ91D magnesium alloy

“…Some surface modification techniques have been developed for the protection of Mg alloys [5][6][7][8], among which anodic oxidation is one of very popular methods [9,10]. Plasma electrolytic oxidation (PEO) [11][12][13][14], as a novel technique developed from traditional anodic oxidation, has been brought for surface modification of Mg alloys and a lot of studies have indicated that properties of coatings produced by PEO mainly depend on the nature of substrate metal, the type of power source, the applied current density, the composition and concentration of electrolyte, etc.…”

Comparison of four antitarnishing self-assembled monolayers on silver coin

“…Octadecanethiol SAMs formed in organic solvent (OSO) 2 Silver substrate was etched with 10% sulphuric acid for 5 min, rinsed with DI water and then immersed into isopropanol solvent containing 0?15 mol L 21 octadecanethiol at 60uC for 12 h. After the sample was spray rinsed with isopropanol and then dried with nitrogen, octadecanethiol SAMs was obtained.…”

“…Electrochemical impedance spectroscopy had been successfully applied in investigating SAMs. 2,3,10 Electrochemical impedance spectroscopy provided a method to characterise film coverage on electrodes, which was related to charge transfer resistance R t . Interface capacitance was also used to characterise the film.…”

“…The EIS data were fitted using the ZsimpWin software (EG&G) based on Takenouti's model, 2 which is shown in Fig. 6.…”

“…1 Magali found that the hexadecanethiol SAMs on silver were invisible and could prevent silver from tarnishing in the highly aggressive medium containing 0?5M NaCl and 0?01M Na 2 S solution. 2 Bernard et al found that the antitarnish effect of hexadecanethiol SAM film was more efficient than that of poly(amino-triazole) 3 and fluorinated amidethiol films. 4 By forming covalent-like bond between silver and sulphur atoms, these adsorbed alkanethiols formed dense monolayers onto the silver.…”