Electrocatalytic reduction of oxygen to water at Au nanoclusters vacuum-evaporated on boron-doped diamond in acidic solution
説明
Electrocatalytic reduction of oxygen at a boron (B)-doped diamond (BDD) electrode on which Au nanoclusters (GNCs) were deposited by vacuum-evaporation was investigated in 50 mM H2SO4 solution. Oxygen reduction current started to flow at a more positive potential at the GNCs/BDD electrode than at a polycrystalline gold electrode. Formation of water through a 4-electron reduction pathway at the GNCs/BDD electrode was confirmed, although oxygen reduction at gold electrodes in acidic solutions generally proceeds via a 2-electron pathway generating H2O2.
収録刊行物
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- Electrochemistry Communications
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Electrochemistry Communications 6 (8), 773-779, 2004-08
Elsevier BV