Copper‐Silver Bimetallic Metal‐Covalent Organic Frameworks with Unique Intermediate Interlayer Transfer Effects for Enhanced Electrocatalytic CO ₂ to Ethylene Conversion

Abstract The electrochemical reduction of CO 2 to ethylene (C 2 H 4 ) offers a promising approach to mitigating greenhouse gas emissions while generating high‐value chemical products. However, achieving both high C 2 H 4 selectivity and long‐term catalyst stability remains a significant challenge for single‐atom catalysts, primarily due to the absence of adjacent active sites required for the coupling of reaction intermediates. Herein, a bimetallic metal‐covalent organic framework (MCOF) with precisely tunable Cu‐Ag spatial configurations was developed to enhance CO 2 ‐to‐C 2 H 4 conversion through a synergistic catalytic mechanism. By optimizing the Cu/Ag molar ratio to 1:1 (Ag 0.5 Cu 0.5 ‐CTC‐TAPT), the catalyst achieves a Faradaic efficiency for C 2 H 4 (FE(C 2 H…