| 从氨性柠檬酸溶液中电沉积Ni-Mo的机理研究 |
| |
| 引用本文： | 曾跃,姚素薇,郭鹤桐.从氨性柠檬酸溶液中电沉积Ni-Mo的机理研究[J].物理化学学报,1995,11(4):351-355. |
| |
| 作者姓名： | 曾跃 姚素薇 郭鹤桐 |
| |
| 作者单位： | Department of Chemistry,Hunan Normal Univeristy,Changsha 410006,Department of Applied Chemistry,Tianjin University,Tianjin 300072 |
| |
| 摘 要： | 含钼大于约27％（质量分数）Ni－Mo合金，具有较高的耐蚀性，特别是在盐酸和硫酸溶液中，其耐蚀性优于SUS304不锈钢［1］．因此，人们对该种合金的电沉积进行了广泛的研究［1－4］．对合金共沉积机理也作了一定的研究．一般认为，钼不能单独进行电沉积，但它可以同铁族元素共沉积［5］．对钼与铁族元素的共沉积机理，人们已提出了几种假设．一般认为［3］，钼可能是多步还原，即六价钼首先被电化学还原成低价钼化合物，而后由吸附在诱导金属（铁族元素）上的原子氢进一步还原成合金中的零价钼，为了进一步弄清Ni－Mo合金的共沉积机理，本…
|
| 关 键 词： | 电沉积 Ni-Mo合金 机理 |
| 收稿时间： | 1994-01-22 |
| 修稿时间： | 1994-04-12 |
Electrodeposition Mechanism of Ni-Mo Alloys from Ammoniacal Citrate Solution |
| |
| Zeng Yue.Electrodeposition Mechanism of Ni-Mo Alloys from Ammoniacal Citrate Solution[J].Acta Physico-Chimica Sinica,1995,11(4):351-355. |
| |
| Authors: | Zeng Yue |
| |
| Institution: | Department of Chemistry,Hunan Normal Univeristy,Changsha 410006|Department of Applied Chemistry,Tianjin University,Tianjin 300072 |
| |
| Abstract: | The electrodeposition mechanism of Ni-Mo alloys from ammoniacal citrate solution was investigated by means of steady-state polarization curves, impedance measurement and XPS analysis. XPS analysis showed the existence of tetravalent molybdenum corresponding to MoO2 on the surface of some deposits. Probably, as an intermediate product, MoO2 was reduced by atomic hydrogen adsorpted on nickel. Electrochemical investigation indicated that Nicit(NH3)2]-ion is the electro-active species of nickel, though nickel ion ekist mainly asNicit(NH3)3]- in ammoniacal citrate solution. |
| |
| Keywords: | Electrodeposition Ni-Mo alloy Mechanism |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
|
