Humidified oxygen was reduced to hydrogen peroxide at the cathode in a proton exchange membrane electrochemical flow reactor. The optimum conditions for peroxide generation were determined as a function of the applied voltage, electrode materials (gold, graphite, and activated carbon powders), catalyst loadings, reactant flowrates, and pressure. Measured and calculated quantities included cell current, peroxide concentrations, and current efficiencies.
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Tatapudi et al. (1993) studied this question.
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