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Subsurface oxygen has been proposed to be crucial in oxide‐derived copper (OD‐Cu) electrocatalysts for enhancing the binding of CO intermediates during CO2 reduction reaction (CO2RR). However, the presence of such oxygen species under reductive conditions still remains debated. In this work, the existence of subsurface oxygen is validated by grazing incident hard X‐ray photoelectron spectroscopy,...
Subsurface‐Sauerstoff in aus Oxid gewonnenem Cu wird im Forschungsartikel von Hsin‐Yi Wang et al. mittels Röntgenphotoelektronenspektroskopie erforscht (e202111021). Die Ergebnisse zeigen, dass nach der Reduktion des Cu‐Oxid‐Vorläufers zwei Arten von Sauerstoffspezies zwischen der vollständig reduzierten Metalloberfläche und dem darunter vergrabenen Cu2O eingebettet sind: (i) Sauerstoff, der an Gitterdefekten...
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