当电极反应处于平衡时,电极反应的两个方向进行的速度相等,此时的反应速度叫做交换反应速度。相应的按两个反应方向进行的阳极反应和阴极反应的电流密度绝对值叫做交换电流密度,用jo表示。
实验结果表明,在一定范围内,随着铂炭复合电极中铂含量的增加,其交换电流密度也随之增大。
The results show that the exchange electrical current density augment with the increase of platinum content of the compound electrode in a certain content range.
当氢化物电极中贮氢容量较小时,电极反应的交换电流密度与电极中贮氢容量存在对数值的线性关系。
The relationship of logarithm of exchange current density and rest capacity of electrodes is linear when the rest capacity is relatively low.
摘要通过测量表面覆铜的贮氢合金电极的交换电流密度,初步讨论了覆铜层对贮氢合金的电催化活性的影响。
By directly measuring the exchange current density, the effect of surface copper coating of metal negative electrodes on electrocatalytic activity were investigated.
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