On the Operational Conditions' Effect on the Performance of an Anion Exchange Membrane Water Electrolyzer: Electrochemical Impedance Spectroscopy Study

被引：18
|
作者：
Pushkareva, Irina V. [1 ,2 ]
Solovyev, Maksim A. [1 ,2 ]
Butrim, Sergey I. [1 ,2 ]
Kozlova, Margarita V. [1 ,2 ]
Simkin, Dmitri A. [1 ]
Pushkarev, Artem S. [1 ,2 ]
机构：
[1] Natl Res Ctr, Kurchatov Inst, 1 Kurchatov Sq, Moscow 123182, Russia
[2] Natl Res Univ Moscow Power Engn Inst, Dept Chem & Electrochem Energy, 14 Krasnokazarmennaya Str, Moscow 111250, Russia
来源：
MEMBRANES | 2023年 / 13卷 / 02期
关键词：
anion exchange membrane; water electrolysis; operation conditions; supporting electrolyte; electrochemical impedance spectroscopy; stray impedance; ACCELERATED STRESS TESTS; STRUCTURAL-PROPERTIES; HYDROGEN-PRODUCTION; CELL; NICKEL; VISUALIZATION; DURABILITY; CATALYSTS; IRON; GAS;
D O I：
10.3390/membranes13020192
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
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.
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页数：14
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