On the Activity/Selectivity and Phase Stability of Thermally Grown Copper Oxides during the Electrocatalytic Reduction of CO₂.

ABSTRACT: Revealing the active nature of oxide-derived copper is of key importance to understand its remarkable catalytic performance during the cathodic CO₂ reduction reaction (CO₂RR) to produce valuable hydrocarbons. Using advanced spectroscopy, electron microscopy, and electrochemically active surface area characterization techniques, the electronic structure and the changes in the morphology/roughness of thermally oxidized copper thin films were revealed during CO₂RR. For this purpose, we developed an in situ cell for X-ray spectroscopy that could be operated accurately in the presence of gases or liquids to clarify the role of the initial thermal oxide phase and its active phase during the electrocatalytic reduction of CO₂. It was found that the Cu(I)

SUBMITTER: Velasco-Velez JJ 

PROVIDER: S-EPMC7536714 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature