Electrocatalytic CO₂ Reduction to Multi‐Carbon Products on Non‐Copper‐Based Catalysts: Reaction Pathways, Enhancement Strategies, and Future Challenges

The need to secure environmentally sustainable sources of clean fuel has led to intensive research into the catalytic conversion of CO 2 into valuable compounds. However, the intrinsically sluggish reduction kinetics and competing reaction pathways present challenges in achieving high product selectivity and efficiency. Herein, we focus on the transformation of CO 2 into products, particularly emphasizing advances in non‐copper‐based catalytic systems, which have emerged as promising alternatives that present unique electronic structures and adsorption properties. Unlike conventional copper catalysts, these systems offer distinct advantages in selectivity and stability, particularly through the modulation of surface defect engineering. We systematically analyze the main reaction pathways leading to products, including ethylene formation and higher hydrocarbon (C 2–4 ) alcohols and oxygenates, while critically assessing the mechanistic insights that differentiate non‐copper catalysts from their Cu‐based counterparts. By summarizing recent developments, the key challenges, and optimization strategies, we provide a comprehensive overview of how non‐copper catalysts can enable efficient and scalable CO 2 reduction reactions, with an aim of assisting researchers in their design of novel catalysts that may reach industrial applications.