扩散电位，即扩散电势，又称液接电势，指在两个组成不同或浓度不同的电解质溶液互相接触的界面间所产生的电位差。
采用固体电解质电位测定技术进行了内扩散影响的考察。
The technique of solid -electrolyte - potentiometry (SEP) was used to investigate the effect of internal diffusion.
低电位下的氧化反应是可逆反应，硫离子扩散为控制步骤；
Oxidization under lower potential is a reversible reaction and the rate determining step of this reaction is sulfide ions diffusion controlling.
用有限扩散边界模型解释了高电位扫速下膜电极的伏安行为。
For the high scanning rate, the voltammetric behaviour can be explained in terms of the finite diffusion interface model.
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