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Updated: Dec 3, 2025

Metal Corrosion and the Efficiency of Corrosion Inhibitors in Less Conductive Media
Published on: November 3, 2018
Moving Electrode Impedance Spectroscopy for Accurate Conductivity Measurements of Corrosive Ionic Media
Nikolaus Doppelhammer1, Nick Pellens2, Johan Martens2
1Institute for Microelectronics and Microsystems, JKU Linz, A-4040 Linz, Austria.
Abstract:
A measurement cell for the use of accurate conductivity measurements of corrosive ionic media is presented. Based on the concept of moving electrode electrochemical impedance spectroscopy, exceptional measurement accuracy is achieved in a large conductivity range. Extensive testing with corrosive ionic media demonstrated the robust operation of the cell under harsh chemical conditions, up to temperatures of 130 °C. The novel design allows monitoring small conductivity changes during chemical reactions in ionic media, for instance, zeolite formation from hydrated ionic liquids.
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