A change in orientation of adsorbed oxygen molecules from parallel (top) at the bare Pt electrode to a mixture of parallel and end-on modes at a Pt surface modified by the electrodeposition of manganese oxide nanoparticles (nano-MnOx/Pt) causes a higher population of oxygen molecules at the MnOx/Pt surface (bottom). The modified electrode is thus a superior electrocatalyst for the reduction of oxygen (Pt yellow, O white, MnOx black).
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El‐Deab et al. (2006) studied this question.
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