On the contamination of membrane–electrode assembles of water electrolyzers with solid polymer electrolyte by the elements of titanium alloys

The aspects of contamination of membrane–electrode assemblies of water electrolyzers with solid polymer electrolyte by the elements of titanium alloys (Ti and Fe) are considered. These alloys are used as the material for current collectors/gas-diffusion electrodes, bipolar plates, and other elements...

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Bibliographic Details
Published in:Russian journal of electrochemistry 2017-08, Vol.53 (8), p.808-812
Main Authors: Grigoriev, S. A., Bessarabov, D. G., Glukhov, A. S.
Format: Article
Language:English
Subjects:
Accumulators
Alloying elements
Chemistry
Chemistry and Materials Science
Collectors
Contamination
Deionization
Diffusion electrodes
Diffusion plating
Electrochemistry
Electrodes
Electrolysis
Electrolytes
Ferrous alloys
Physical Chemistry
Titanium alloys
Titanium base alloys
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Summary:The aspects of contamination of membrane–electrode assemblies of water electrolyzers with solid polymer electrolyte by the elements of titanium alloys (Ti and Fe) are considered. These alloys are used as the material for current collectors/gas-diffusion electrodes, bipolar plates, and other elements of electrolysis system. It is shown that titanium is one of the main impurities that contaminate the membrane and electrocatalytic layers of membrane–electrode assembly in the case that deionized water is used as the reagent. The membrane contamination can lead to the degradation of electrolyzer characteristics and its failure.
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193517080067