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Current Challenges in Catalyst Development for PEM Water Electrolyzers
Author(s) -
Bernt Maximilian,
HartigWeiß Alexandra,
Tovini Mohammad Fathi,
ElSayed Hany A.,
Schramm Carina,
Schröter Jonas,
Gebauer Christian,
Gasteiger Hubert A.
Publication year - 2019
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201900101
Subject(s) - proton exchange membrane fuel cell , catalysis , anode , durability , materials science , chemical engineering , work (physics) , current (fluid) , electrode , chemistry , composite material , mechanical engineering , engineering , electrical engineering , biochemistry
Abstract This work addresses current challenges in catalyst development for proton exchange membrane water electrolyzers (PEM‐WEs). To reduce the amount of iridium at the oxygen anode to levels commensurate with large‐scale application of PEM‐WEs, high‐structured catalysts with a low packing density are required. To allow an efficient development of such catalysts, activity and durability screening tests are essential. Rotating disk electrode measurements are suitable to determine catalyst activity, while accelerated stress tests on the MEA level are required to evaluate catalyst stability.