Effect of the substrate on the electrodeposition of iron sulphides

摘要

The electrodeposition of iron sulphides films on titanium and Ebonex, in aqueous solutions containing iron(II) ions and colloidal sulphur, has been assessed at 333 K, using periodic pulse electrolysis. Mackinawite was the only crystalline iron sulphide phase identified on the deposit. The structural and morphological characterization of the sulphide films obtained on both substrates was accomplished by X-ray powder diffraction (XRD) and scanning electron microscopy coupled with energy dispersive X-ray analysis (SEM/EDS). The results show that the film structure and morphology are sensitive to the substrate material.