G. Hsieh et al., EXPERIMENTAL LIMITATIONS IN IMPEDANCE SPECTROSCOPY .2. ELECTRODE ARTIFACTS IN 3-POINT MEASUREMENTS ON PT YSZ/, Solid state ionics, 91(3-4), 1996, pp. 203-212
High temperature (570-750 degrees C) three-point impedance measurement
s on the system Pt/YSZ using a platinum reference electrode exhibited
distortions/artifacts due to the voltage divider effect. These distort
ions could be avoided by using a lower impedance reference electrode (
Ag) or employing an instrument with a higher input impedance. A correc
tion procedure was also successful.