Iodide-mediated Cu catalyst restructuring during CO₂ electroreduction.

ABSTRACT: Catalyst restructuring during electrochemical reactions is a critical but poorly understood process that determines the underlying structure-property relationships during catalysis. In the electrocatalytic reduction of CO₂ (CO₂RR), it is known that Cu, the most favorable catalyst for hydrocarbon generation, is highly susceptible to restructuring in the presence of halides. Iodide ions, in particular, greatly improved the catalyst performance of Cu foils, although a detailed understanding of the morphological evolution induced by iodide remains lacking. It is also unclear if a similar enhancement transfers to catalyst particles. Here, we first demonstrate that iodide pre-treatment improves the selectivity of hexagonally ordered Cu-island arrays towards ethylene and oxy

SUBMITTER: Yoon A 

PROVIDER: S-EPMC9255670 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature