Comparative Spectroscopic Study Revealing Why the CO₂ Electroreduction Selectivity Switches from CO to HCOO^- at Cu-Sn- and Cu-In-Based Catalysts.

ABSTRACT: To address the challenge of selectivity toward single products in Cu-catalyzed electrochemical CO₂ reduction, one strategy is to incorporate a second metal with the goal of tuning catalytic activity via synergy effects. In particular, catalysts based on Cu modified with post-transition metals (Sn or In) are known to reduce CO₂ selectively to either CO or HCOO^- depending on their composition. However, it remains unclear exactly which factors induce this switch in reaction pathways and whether these two related bimetal combinations follow similar general structure-activity trends. To investigate these questions systematically, Cu-In and Cu-Sn bimetallic catalysts were synthesized across a range of composition ratios and studied in detail. Compositional and mo

SUBMITTER: El-Nagar GA 

PROVIDER: S-EPMC9793466 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature