In situ formation of LDH-based nanocontainers on the surface of AZ91 magnesium alloy and detailed investigation of their crystal structure

In the presented work, possibility of direct synthesis LDH (layered double hydroxide) on AZ91 surface in presence a chelating agent (diethylenetriaminepentaacetic acid - DTPA) is reported. Conversion layer nanocontainers were formed under ambient pressure conditions without carbonate addition electrolyte. The obtained was characterized using experimental (SEM, XRD, TGA, XPS, Raman, etc.) and computational methods (thermodynamic calculation, modeling possible crystal structures). A comparison three LDHs (LDH-OH, -NO 3 -CO ) performed. Based results simulation approach, it confirmed, that mixed LDH-OH/CO grown DTPA pentasodium salt.