Effect of succinimide on the nucleation mechanism of silver in deep eutectic solvents
Cyclic voltammetry(CV)and chronoamperometry(CA)were used to investigate the nucle-ation mechanism of silver in deep eutectic solvents(DESs)with or without the addition of succinimide.Scanning electron microscopy(SEM)and X-ray diffraction(XRD)were applied to observe the effect of plating solution concentration on the microstructure and phase composition of the coating.The results of chronoamperometry showed that the addition of succinimide changed the crystallization mode of Ag,and the process of Ag crystallization in DES-0.6 mol/L succinimide and 0.1 mol/L AgNO3 was three-dimensional continuous nucleation controlled by diffusion.With the addition of succinimide,the surface Ag crystallization of the coating becomes finer,the crystallinity increases,and the corrosion resistance of the silver coating are improved.
deep eutectic solventssilver coatingelectrodeposition behaviorsuccinimide
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