Towards re-electrification of hydrogen obtained from the power-to-gas process by highly efficient H2/O2 polymer electrolyte fuel cells
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In the power-to-gas process, hydrogen, produced by water electrolysis, is used for storage of excess renewable electric power. Pure oxygen is a byproduct of the electrolysis process. Using pure oxygen as the oxidant in polymer electrolyte fuel cells can increase the efficiency of the power-to-hydrogen-to-power energy storage chain.
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Keyword(s):