Prospective of the LDI MS to characterization the corrosion products of silver-copper alloys on an example of the Ag-Cu-X (X- Zn, Pd, In) system

This work presents the perspective of applying laser desorption/ionization mass spectrometry (LDI MS) for characterization anode film Ag60Cu26Zn14, Ag58.5Cu31.5Pd10, and Ag63Cu27In10 alloys (at high concentrations chloride ions in solutions). The reference LDI spectra films pure Ag Cu have been used identification product corrosion. Knowing clusters detected lead to facilitating spectrum sample reduces analysis time. MS these revealed that predominant corrosion are AgCl (from AgnCln+1−/+, n = 1–3), CuCl “superhalogen” CumCln− clusters, m 1–2, 2–6); it also Cu2(OH)3Cl Cu2(OH)(H2O)2+) Cu2O Cu(H2O)+, doped with chlorine). These results accordance X-ray diffraction Raman analysis. contain additional peaks formed due mutual influences different metals (AgCuCl3− (AgCl-CuCl2−), AgCu2Cl4− (AgCl-CuCl-CuCl2−), Ag2CuCl4− (AgCl-AgCl-CuCl−), which is consistent identified products. It should be noted suggest presence CuCl2, can interpreted as products retained porous alloys, not by other methods a small amount. future theoretical experimental studies metal significant metallurgy, contribute becoming powerful analytical tool surfaces.