Efficient Electrochemical CO₂ Reduction Using AgN₃ Single-Atom Sites Embedded in Free-Standing Electrodes for Flow Cell Applications.

ABSTRACT: The electrochemical reduction of CO2 into valuable chemicals presents a promising strategy for carbon utilization; however, it remains challenging due to low activity, poor selectivity and stability of existing catalysts. In this study, we report the fabrication of free-standing silver single-atom catalysts (Ag SACs) designed for the efficient conversion of CO2 to carbon monoxide (CO) at high current densities in a bicarbonate electrolyzer. The Ag single atoms dispersed within a carbon matrix, forming Ag-N3 active sites for the electrocatalytic CO2 reduction reaction (CO2 RR). The catalytic activity and stability of the free-standing Ag SACs are evaluated at a current density of 100 mA cm-2, demonstrating prolonged electrolysis with consistent Faradaic efficiency for CO production. Density

SUBMITTER: Hossain MN 

PROVIDER: S-EPMC12362748 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature