Abstract Cobalt sulfide thin films have been successfully synthesized on stainless steel substrate using chemical bath deposition (CBD) method. The as prepared cobalt sulfide thin film is pretreated anodically at constant current density of 10 mA cm−2 for 14 h and its physical and structural properties are studied. The electrochemical study in 1 M KOH shows enhancement in catalytic activity after treatment. The linear sweep voltammetry study shows decrease in overpotential from 300 mV to 270 mV after anodic constant current treatment, making cobalt sulfide catalytically more active.

中文翻译：

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预处理对硫化钴薄膜的析氧反应催化活性的影响。

摘要 使用化学浴沉积（CBD）方法在不锈钢基底上成功合成了硫化钴薄膜。将制备的硫化钴薄膜在 10 mA cm-2 的恒定电流密度下阳极预处理 14 小时，并研究其物理和结构特性。在 1 M KOH 中的电化学研究表明，处理后催化活性增强。线性扫描伏安法研究表明，阳极恒流处理后过电位从 300 mV 降低到 270 mV，使硫化钴的催化活性更高。