The indium recovery via electrowinning from sulfate baths has recently gained significant attention as it does not present toxic emissions, hermetically sealed system requirements, human health, and environmental hazards. Following previous works related to the optimization process for AISI 316L and Ni cathode, it was observed significant importance of the metal supports on the input and output parameters of the indium electrowinning process from sulfate solutions. Thus, comparing input and output parameters in both cases seems very interesting. Particularly, regarding the input parameters, the attention has been focused on the electrolyte composition, current density, and temperature, while productivity, morphology, and structure have been considered regarding the output parameters. Considering the productivity as the optimal output, the findings for Ni cathode were better than that for AISI 316L in most of the selected conditions studied. In the case of morphology, indium grains appear rounded and dendritic on the AISI 316L, while those on the Ni cathode show stratified lamellar grains. Anyway, the indium deposit obtained on Ni cathode shows bigger grains independently from the used operative conditions with respect to that on AISI 316L. Regarding the structure, it is clearly tetragonal, but preferential orientation, crystallinity, and deformation of the structure strongly depend on the metal support.

通过从硫酸盐浴中电解沉积回收铟最近受到了极大的关注，因为它不存在有毒排放、密封系统要求、人类健康和环境危害。继之前与 AISI 316L 和 Ni 阴极的优化过程相关的工作之后，观察到金属载体对硫酸盐溶液中的铟电解沉积过程的输入和输出参数具有重要意义。因此，比较两种情况下的输入和输出参数似乎很有趣。特别是，关于输入参数，注意力集中在电解质成分、电流密度和温度，而关于输出参数则考虑了生产率、形态和结构。将生产力视为最优产出，在所研究的大多数选定条件下，Ni 阴极的结果优于 AISI 316L。就形貌而言，AISI 316L 上的铟晶粒呈圆形和树枝状，而镍阴极上的铟晶粒呈层状层状晶粒。不管怎样，相对于 AISI 316L，在镍阴极上获得的铟沉积物显示出更大的晶粒，与使用的操作条件无关。关于结构，它显然是四方的，但结构的优先取向、结晶度和变形在很大程度上取决于金属支撑。相对于 AISI 316L，在 Ni 阴极上获得的铟沉积物显示出更大的晶粒，与使用的操作条件无关。关于结构，它显然是四方的，但结构的优先取向、结晶度和变形在很大程度上取决于金属支撑。相对于 AISI 316L，在 Ni 阴极上获得的铟沉积物显示出更大的晶粒，与使用的操作条件无关。关于结构，它显然是四方的，但结构的优先取向、结晶度和变形在很大程度上取决于金属支撑。