Work

Two‐Dimensional Metal Covalent Organic Polymers with Dirhodium(II) Photoreduction Centers for Efficient Nitrogen Fixation

Year: 2024

Type: article

Abstract: Photocatalytic nitrogen fixation is a green method for converting N2 to NH3, but it remains a challenging task due to the lack of effective photocatalysts. Herein, a series of porous metal covalent organic polymers (MCOPs) with the integration of dinuclear rhodium(II) catalytic centers were rationally constructed for photocatalytic N2 fixation. Interestingly, the porous MCOPs had double‐layers two‐dimensional (2D) structures with the coordinated Rh(II) as the point of registry. The photocatalytic experiment showed that Rh‐TAPA with significant donor‐acceptor (D−A) features exhibited a high activity toward NH3 production with a rate of 319.8 μmol g−1 h−1. The electron transfer process, N2 adsorption and activation mechanism of RhCOPs were further investigated through comprehensive characterization, including DFT calculations and in situ characterization. This work provided a valuable insight into the photocatalytic N2 fixation process with porous materials.

Source: ChemNanoMat

DOI: 10.1002/cnma.202400462

Authors: Qian‐Qian Qiu, Wang‐Kang Han, Ruo‐Meng Zhu, Yong Liu, Jia‐Xing Fu, Zhi‐Guo Gu

Institutions: Jiangnan University, Key Laboratory of Synthetic and Biological Colloids, Ministry of Education

Language: English

Topic: Covalent Organic Framework Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: Henan Normal University, National Natural Science Foundation of China, Jiangnan University

Award: 配位模板法构筑三维互锁共价有机框架及其性能研究