| Properties of electrodeposited Ni-S（La） coatings |
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| 引用本文： | 韩庆,魏绪钧,陈建设.Properties of electrodeposited Ni-S（La） coatings[J].中国有色金属学会会刊,2002,12(1):54-56. |
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| 作者姓名： | 韩庆 魏绪钧 陈建设 |
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| 作者单位： | SchoolofMaterials＆Metallurgy,NortheasternUniversity,Shenyang110004,China |
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| 基金项目： | Project ( 5 98740 11)supportedbytheNationalNaturalScienceFoundationofChina |
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| 摘 要： | Ni-S(La) coatings were obtained by electrodeposition in a typical Watt bath by adding CS(NH2)2 and LaCl3. The minimum HER overpotential is 75 mV. The corresponding electrochemical parameters (Tafel slope b, exchanging current density J0 ) 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 LaC13 is benefit for amorphous coating structure to form.
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| 关 键 词： | 稀土 镍硫合金 HER 电极沉积 电镀 Ni-S La 镧 |
Properties of electrodeposited Ni-S(La) coatings |
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| Abstract: | Ni-S(La) coatings were obtained by electrodeposition in a typical Watt bath by adding CS(NH2)2 and LaCl3. The minimum HER overpotential is 75mV. The corresponding electrochemical parameters (Tafel slope b, exchanging current density J0) 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 LaCl3 is benefit for amorphous coating structure to form. |
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| Keywords: | rare earth electrodeposition Ni S alloy HER |
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