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电池2012

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[求助] 纠结的mass-transfer corrected Tafel plots图

氧还原催化剂相关的文献中有这么个图,“The Tafel plots were obtained after the measured currents were corrected for diffusion to give the kinetic currents in the mixed activation–diffusion region, calculated from the equation: j k = [j/(jd-j)], where j is the overall measured current density, j k is the kinetic current density, j d is the boundary-layer diffusion-limited current density and [j/(jd-j)] is the mass-transfer correction。”  请问这里的j和jd是怎么测得的?

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