Abstract
THE formation of hydrogen peroxide is considered by some authors1–3 as the possible source of the poor efficiency of oxygen electrodes in a fuel cell. Indeed, the reduction : 
would proceed at a normal potential below 1.23 V if the foregoing reaction occurs in two steps: 
assuming that the second step is irreversible.
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References
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LIANG, C., JULIARD, A. Reduction of Oxygen at the Platinum Electrode. Nature 207, 629–630 (1965). https://doi.org/10.1038/207629a0
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DOI: https://doi.org/10.1038/207629a0
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