Abstract:Black chromium coating was electrodeposited on brass substrate from choline chloride-ethylene glycol (ChCl-EG) deep eutectic solvent (DES), via potentiostatic electrodeposition method. Cyclic voltammetry method was used to study the electrochemical reduction behavior of trivalent chromium ions (Cr 3+) in ChCl-EG deep eutectic solvent. The composition and morphology of coating were characterized by X-ray photoelectron spectroscopy and scanning electron microscopy. The results showed that the electrochemical red… Show more
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