| Autor: |
Pushkareva IV; National Research Center 'Kurchatov Institute', 1 Kurchatov sq., Moscow 123182, Russia.; Department of Chemistry and Electrochemical Energy, National Research University 'Moscow Power Engineering Institute', 14 Krasnokazarmennaya str., Moscow 111250, Russia., Solovyev MA; National Research Center 'Kurchatov Institute', 1 Kurchatov sq., Moscow 123182, Russia.; Department of Chemistry and Electrochemical Energy, National Research University 'Moscow Power Engineering Institute', 14 Krasnokazarmennaya str., Moscow 111250, Russia., Butrim SI; National Research Center 'Kurchatov Institute', 1 Kurchatov sq., Moscow 123182, Russia.; Department of Chemistry and Electrochemical Energy, National Research University 'Moscow Power Engineering Institute', 14 Krasnokazarmennaya str., Moscow 111250, Russia., Kozlova MV; National Research Center 'Kurchatov Institute', 1 Kurchatov sq., Moscow 123182, Russia.; Department of Chemistry and Electrochemical Energy, National Research University 'Moscow Power Engineering Institute', 14 Krasnokazarmennaya str., Moscow 111250, Russia., Simkin DA; National Research Center 'Kurchatov Institute', 1 Kurchatov sq., Moscow 123182, Russia., Pushkarev AS; National Research Center 'Kurchatov Institute', 1 Kurchatov sq., Moscow 123182, Russia.; Department of Chemistry and Electrochemical Energy, National Research University 'Moscow Power Engineering Institute', 14 Krasnokazarmennaya str., Moscow 111250, Russia. |
| Abstrakt: |
The performance of an anion exchange membrane water electrolyzer under various operational conditions (including voltage, KOH-supporting electrolyte concentration, and flow rate) is studied using conventional time-domain technics and electrochemical impedance spectroscopy (EIS). The water electrolyzer EIS footprint, depending on the variation in operational conditions, is studied and discussed, providing valuable data on the faradaic and non-faradaic processes in MEA, considering their contribution to the total polarization resistance. The distribution of the AEMWE cell voltage contributions is valuable to accessing the key directions in the system performance improvement. |
