CAJ | 학술논문

采用恒电流沉积方法在水溶液中沉积出LaMgNi_4合金薄膜.利用循环伏安、模拟电池充放电循环、扫描电镜(SEM)以及X射线衍射(XRD)等方法研究了电沉积合金薄膜的电化学性能和表面形貌及结构.结果表明,该合金薄膜作为贮氢电极具有较好的电化学性能,其电化学活性高,活化性能好,首次充放电比容量达398 mAh/g.
채용항전류침적방법재수용액중침적출LaMgNi_4합금박막.이용순배복안、모의전지충방전순배、소묘전경(SEM)이급X사선연사(XRD)등방법연구료전침적합금박막적전화학성능화표면형모급결구.결과표명,해합금박막작위저경전겁구유교호적전화학성능,기전화학활성고,활화성능호,수차충방전비용량체398 mAh/g.
The film of LaMgNi_4 alloy was prepared by constant-current electrodeposition method in an aqueous solution. The electrochemical performance, surface morphology and structure of the film were studied by cyclic voltammetry, charge-discharge cycle, SEM and XRD. The results show that as a hydrogen storage electrode, the film has good electrochemical activity with no need for an activation procedure and the capacity reached 398 mAh/g in the first cycle.