塔菲尔方程
过电位
极化(电化学)
材料科学
涂层
无定形固体
腐蚀
电化学
冶金
阳极
复合材料
化学
结晶学
物理化学
电极
出处
期刊:中国有色金属学会会刊(英文版)
日期:2002-01-01
被引量:1
摘要
Ni S(La) coatings were obtained by electrodeposition in a typical Watt bath by adding CS(NH 2) 2 and LaCl 3. The minimum HER overpotential is 75?mV. The corresponding electrochemical parameters (Tafel slope b , exchanging current density J 0) were obtained by measuring the steady state polarization curves. The content of S, La in the coating and its structure were measured by EPMA and XRD. The results show that there is no lanthanum in such coating and its structure is amorphous. From the anodic polarization curves, it is shown that the corrosion resistance of coating is very good. Based on the cathodic polarization curves during electrodeposition, it is found that LaCl 3 is benefit for amorphous coating structure to form.
科研通智能强力驱动
Strongly Powered by AbleSci AI