设计了一种新型电解池,配有两支参比电极,参比电极到工作电极之间的距离可精确调节。在进行极化曲线测量时,通过测量工作电极相对于两支参比电极的电位,可求得不同电流密度下的溶液电阻,从而消除溶液电阻的影响。模拟电路和实际体系的测量证明了本实验技术的可行性。
A new type of electrochemical cell with two reference electrodes was designed to meet the requirement of solution resistance correction in the measurement of stationary polarization curves. The distance from the reference electrodes to working electrode should be accurately adjusted. The effect of solution resistance was eliminated by calculation from the potential data measured with these two reference electrodes. The results of simulation circuit and some real systems showed that this experimental technique was practical for the study of corrosion electrochemistry.
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