【摘 要】
：
Influence mechanism of sulfide ions (S2-) during manganese electrodeposition from sulphate electrolyte was investigated. Under the experimental conditions, S2- ion concentration and electrolyte pH represented significant multiple effects on the cathode cu
【机 构】
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College of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan
【出 处】
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武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
Influence mechanism of sulfide ions (S2-) during manganese electrodeposition from sulphate electrolyte was investigated. Under the experimental conditions, S2- ion concentration and electrolyte pH represented significant multiple effects on the cathode current efficiency. Scanning electron microscope (SEM) indicated that electrodeposition manganese layer (EML) became refinement as S2- ion concentration was increased. X-ray Diffraction (XRD) displayed that S2- ion had negligible influence on the preferred orientation of the crystalline layer of the EML. S2- ion had no influence on the chemical composition of EML. S2-ion could improve the corrosion resistance of EML. The interaction mechanism of S2- ion with manganese electrodeposition was systematically explored by analysing E-pH diagram, cyclic voltammetry curve, cathode polarization curve and electrochemical impedance method.
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