Photocatalytic Co‐Reduction of CO2 and Nitrate over Porphyrin Metal–Organic Frameworks: Dual Atomic Active Site and Nanostructure Synergy Enhances C–N Coupling for Urea Production
Year: 2025
Type: article
Abstract: The photocatalytic co‐reduction of NO3− and CO2 (NitRR&CRR) offers a sustainable approach for urea synthesis and environment remediation. However, there is a lack of high‐performance photocatalysts. Herein, we report a nanoflower‐like bimetallic porphyrin metal–organic framework superstructure (Cu‐TCPP(Co)‐NF, TCPP = tetrakis(4‐carboxyphenyl)porphyrin) as an efficient NitRR&CRR photocatalyst for urea production. Systematical investigations have revealed that the Cu and Co centers serve as the active sites for driving NitRR and CRR, respectively. The high pore volumes of nanoflower architecture can improve the light adsorption, promote the reactant enrichment, and intermediate generation. Consequently, the C–N coupling process over Cu‐TCPP(Co)‐NF is facilitated with reduced energy barriers and inhibited side reactions, resulting in an unprecedent urea yield of 2459.8 µg h−1 gcat−1 in the absence of sacrificial agents. This study provides new insights into the design of advanced photocatalysts for urea synthesis.
Source: Angewandte Chemie
Authors: Tong Bao, Chencheng Tang, Yunuo Wu, Yin Bi, Chaoqi Zhang, Yamin Xi, Yingying Zou, Chao Liu, Chengzhong Yu
Institutions: East China Normal University, The University of Queensland
Language: English
Field: Energy
Domain: Physical Sciences
SDG: Climate action
Open Access status: hybrid
Estimated APC paid: $5,790
OpenAlex ID: W4413311760