Facts and Fictions About Photocatalytic CO2 Reduction to C2+ Products

Abstract In response to carbon neutrality, photocatalytic reduction of CO 2 has been the subject of growing interest for researchers over the past few years. Multi‐carbon products (C 2+ ) with higher energy density and larger market value produced from photocatalytic reduction of CO 2 are still very limited owing to the low photocatalytic productivity and poor selectivity of products. This review focuses on the recent progress on photocatalytic reduction of CO 2 towards C 2+ products from the perspective of performance evaluation and mechanistic understanding. We first provide a systematic description of the entire fundamental procedures of photocatalytic reduction of CO 2 . An in‐depth strategy analysis for improving the selectivity of photocatalytic reduction of CO 2 to C 2+ products is then addressed. Then the focus was on summarizing the ways to improve C 2+ selectivity. The intrinsic mechanisms of photocatalytic reduction of CO 2 to C 2+ products are summarized in the final. Combining the foundation of photocatalysis with promising catalyst strategies, this review will offer valuable guidance for the development of efficient photocatalytic systems for the synthesis of C 2+ products.