Non‐copper‐based Catalysts for CO 2 Electroreduction to Multi‐carbon Compounds

Abstract Renewable energy has made significant strides, with the cost of clean electricity plummeting, making the use of renewable electricity for electrocatalytic CO 2 reduction to synthesize high‐value chemicals and fuels more economically attractive. Notably, certain non‐copper‐based electrocatalysts have shown remarkable selectivity for C 2+ products at low overpotentials, even enabling the production of multi‐carbon molecules that are undetectable on copper‐based electrodes. This breakthrough opens up new avenues for research into non‐copper catalysts. This article offers a thorough review of the latest research progress in employing non‐copper‐based catalysts for CO 2 conversion, focusing on the generation of C 2+ products in aqueous media. It explores the complex mechanisms of carbon‐carbon coupling and provides a critical assessment of future directions for improving catalyst design, modulating interface microenvironments, and optimizing reaction systems for non‐copper‐based catalysts in CO 2 reduction reactions (CO 2 RR).