Porous gas diffusion-electrode
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United States of America Patent
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Feb 26, 1985
Grant Date -
N/A
app pub date -
Aug 29, 1983
filing date -
Sep 2, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A porous gas-diffusion electrode having a ruthenium electrocatalyst is conditioned for operation as a hydrogen consuming anode by connecting the electrode as a cathode in a suitable electrolyte until it drops below the reversible hydrogen potential and evolves hydrogen. Preferably, the electrode is contacted with a hydrogen atmosphere prior to or at the beginning of hydrogen evolution, and conditioning may be carried out in situ in a cell in which the electrode is to operate as hydrogen consuming anode.
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