Directional Reconstruction to Highly Active Tandem Sites for Superior Acidic CO₂ Electroreduction

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

Abstract Acidic CO 2 electroreduction (CO R) to multi‐carbon (C 2+ ) chemicals advance the carbon neutrality in manner of high utilization efficiency; however, it suffers from low selectivity. Designing tandem catalysts is most promising remedy, yet achieving highly active sites remains an immense challenge due potentiodynamic structural evolution. Here self‐reducing ion (e.g., iodate) mediated reconstruction, which leverages self‐reduction dissolved iodate ions presented harmonize reconstruction rate catalyst and directionally optimize operation. Multiple situ workflow clearly demonstrate that exploited CuO/AgIO 3 occur rapid dissolution AgIO during R, resulting formation defective Ag. Subsequently, preferential as a reduction inhibitor delays CuO directs surface toward Cu(100). The asymmetric charge distribution Ag facilitates generation * COOH enhances local availability further accelerate C─C coupling step implemented on reconstructed achieves outstanding C Faradaic efficiency 82% at 1.2 A cm −2 peak j C2+ (1024 mA ≈1.5 times higher than reported literature benchmark strong acid electrolyte.

Language: Английский

Graphisches Inhaltsverzeichnis: Angew. Chem. 6/2024

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(6)

Published: Jan. 31, 2024

directed linear paths and rotational trajectories on the air/water interface.

Language: Английский