%0 Journal Article %T Absence of Oxidized Phases in Cu under CO Reduction Conditions %J - %D 2019 %R https://doi.org/10.1021/acsenergylett.9b00172 %X By live-monitoring Cu and Cu2O Bragg peaks from the surface of a polycrystalline Cu electrode while scanning from open-circuit potential to CO reduction potentials, we show that the near-surface region is fully converted to the metallic phase at approximately +0.3 V vs RHE %U https://pubs.acs.org/doi/10.1021/acsenergylett.9b00172