Cu MOF-based electrocatalysts for CO2 reduction to multi-carbon products

Abstract

The electrocatalytic CO₂ reduction reaction (CO₂RR) shows great promise in realizing a carbon-neutral cycle by converting CO₂ into value-added chemicals and fuels, especially multi-carbon products (C₂₊) with higher energy density. Cu metal–organic frameworks (MOFs) and their derivatives with high chemistry tunability, large surface area, and unique pore structures have been explored as potential catalysts for the CO₂RR to C₂₊ products. Herein, recent progress of Cu MOF-based electrocatalysts for electrocatalytic CO₂ to C₂₊ products is summarized. First, electrolyzer types, performance evaluation parameters, and the reaction mechanism of the CO₂RR to C₂₊ products are briefly provided. Then, the three types of Cu MOF-based catalysts (Cu-based MOFs, Cu-based MOF composites, and Cu-based MOF derivatives) are discussed in detail, emphasizing electrocatalytic performance enhancement strategies and mechanisms. Finally, we highlight the critical challenges and potential opportunities for designing highly efficient MOF-based catalysts to convert CO₂ to C₂₊ products.