Electrochemical Characterizations

There is a variety of electrochemical characterization methods that can be used to study the properties of different materials or entire systems. In our lab, we focus on characterizing specific components, namely porous electrodes and membranes. A common method we use is I-V analysis, where we apply a voltage (or current) and measure the corresponding current (or voltage), typically to characterize the limiting current of a membrane. Another method that we commonly use is electrochemical impedance spectroscopy (EIS), where the impedance is measured for different frequencies, from which characteristic time scales and local resistances can be estimated.

Further reading:

• Determining the limiting current of an electrodialysis stack: Shocron et al., J. Membr. Sci., 2025, link: https://doi.org/10.1016/j.memsci.2024.123668
• Electrochemical impedance spectroscopy analysis of a porous electrode: Alfisi et al., ACS Sustainable Chem. Eng. A, 2022, link: https://doi.org/10.1021/acssuschemeng.2c02169