Non‐copper‐based Catalysts for CO2 Electroreduction to Multi‐carbon Compounds

Renewable energy has made significant strides, with the cost of clean electricity plummeting, making the use of renewable electricity for electrocatalytic CO2 reduction to synthesize high‐value chemicals and fuels more economically attractive. Notably, certain non‐copper‐based electrocatalysts have shown remarkable selectivity for C2+ 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 CO2 conversion, focusing on the generation of C2+ 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 CO2 reduction reactions (CO2RR).