期刊
MATERIALS
卷 11, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/ma11081368
关键词
water electrolysis; hydrogen generation; impedance spectroscopy; polymer electrolyte membrane; membrane-electrode assembly; oxygen evolution; iridium catalysts; platinum catalysts
类别
资金
- FCH JU through the HPEM2GAS project
- Fuel Cells and Hydrogen 2 Joint Undertaking [700008]
- European Union's Horizon 2020 research and innovation programme
- Hydrogen Europe
- Hydrogen Europe Research
Membrane-electrode assemblies (MEAs) designed for a polymer electrolyte membrane (PEM) water electrolyser based on a short-side chain (SSC) perfluorosulfonic acid (PFSA) membrane, Aquivion (R), and an advanced Ir-Ru oxide anode electro-catalyst, with various cathode and anode noble metal loadings, were investigated. Electrochemical impedance spectroscopy (EIS), in combination with performance and durability tests, provided useful information to identify rate-determining steps and to quantify the impact of the different phenomena on the electrolysis efficiency and stability characteristics as a function of the MEA properties. This technique appears to be a useful diagnostic tool to individuate different phenomena and to quantify their effect on the performance and degradation of PEM electrolysis cells.
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