动电极阻抗谱法用于精确测量腐蚀性离子介质的电导率。
Moving Electrode Impedance Spectroscopy for Accurate Conductivity Measurements of Corrosive Ionic Media.
机构信息
Institute for Microelectronics and Microsystems, JKU Linz, A-4040 Linz, Austria.
Centre for Surface Chemistry and Catalysis: Characterization and Application Team, KU Leuven, 3000 Leuven, Belgium.
出版信息
ACS Sens. 2020 Nov 25;5(11):3392-3397. doi: 10.1021/acssensors.0c01465. Epub 2020 Oct 27.
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.
介绍了一种用于精确测量腐蚀性离子介质电导率的测量池。基于移动电极电化学阻抗谱的概念，在大电导率范围内实现了出色的测量精度。通过腐蚀性离子介质的广泛测试，证明了该测量池在恶劣的化学条件下，最高可达 130°C 的温度下，具有可靠的操作性能。该新型设计允许在离子介质中的化学反应过程中监测小的电导率变化，例如，水合离子液体中的沸石形成。
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