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Abstract Electrochemically converting CO 2 molecules into valuable chemicals and fuels opens up a promising route to utilize CO 2 source. To overcome the low efficiency and durability that hinder its practical applications, tremendous research efforts have been devoted to nano‐level or atomic‐level catalyst design. The advent of metal–organic frameworks (MOFs) provides novel opportunities for CO 2 reduction catalysts, which may integrate the respective advantages of traditional catalysts and single‐atom catalysts. In this review, we summarize the recent advances in two‐dimensional (2D) π‐conjugated MOF catalysts and discuss their practical applications in CO 2 reduction reaction (CO 2 RR). First, we systematically introduce the development of electrocatalysts for CO 2 RR applications. Meanwhile, various types of 2D porphyrin/phthalocyanine‐based MOFs and corresponding electrocatalytic performances arising from active‐site engineering, surface reconstruction, and thickness control are briefly overviewed. Finally, we highlight their major challenges and opportunities facing CO 2 RR, and hope that this review can offer new insight into MOF catalyst design.
Yang et al. (Tue,) studied this question.