What is impedance? (part 3) | Basics of EIS (E03) | Electrochemical Impedance Spectroscopy

We continue to answer the question, "What is impedance?" and learn how to express time-dependent signals in the frequency domain and that impedance is a transfer function. Timestamps 00:00 Intro 00:09 Recap: Representation of impedance 03:41 Expressing time-dependent signals as a function of frequency 13:57 Getting to the frequency domain - the Fourier transform 24:05 Gaining general application: from Fourier to Laplace transform 33:34 Impedance as a transfer function 44:33 Outro 44:46 Summary panel (Endcard) This is the third video in our series 'Basics of EIS', which we created to support the Electrochemical Impedance Spectroscopy lectures of the Master's program in Chemistry and our research student interns at the Ruhr-University Bochum (RUB) in Germany. Since getting started with EIS can be challenging, our goal is to make it accessible regardless of prior knowledge. We provide detailed explanations of the key terms and experimental examples to help viewers understand the concepts, fill in gaps, and promote connections within their knowledge maps. In this way, we hope to prepare our students and interested electrochemistry enthusiasts for more advanced topics in EIS, such as those covered in the Electrochemistry I and II courses at RUB. #EIS #impedance #electrochemistry #education written and presented by Sebastian Reinke and Julia Linnemann filmed and edited by Christian Wunderle Website: https://shape-ec.ruhr-uni-bochum.de/ Acknowledgements: We are grateful for financial support from the Stiftung Mercator (project [e-Speicher]3, project ID 18023) and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under CRC 247 project-ID 388390466 (project A09). S.R. thanks the Deutsche Bundesstiftung Umwelt (DBU) for a doctoral scholarship. The videos were recorded at the “Center for Solvation Science ZEMOS” funded by the German Federal Ministry of Education and Research BMBF and by the Ministry of Culture and Research of North Rhine-Westphalia. We would like to thank Kathleen Schnaars for designing our Impe-DANCE T-shirts.