Work

A porphyrin-based COF to reduce CO2 and nitrite in situ for photoelectrochemical catalysis synthesis of urea

Year: 2025

Type: article

Abstract: Photoelectrocatalytic catalysis of carbon dioxide (CO 2 ) and nitrite (NO 2 − ) direct coupling to synthesise urea (NH 2 CONH 2 ) can effectively avoid the high energy consumption and pollution of the Bosch-Meiser method. COF _PP-TAT was synthesised by hydroformylation of tetrabromophenyl porphyrin (TBPP), amination of trichothecenes (TC), and linking of the two compounds through Schiff base reaction. The comprehensive characterization of COF _PP-TAT showed that has rich pore structure and specific adsorption of CO 2 . These characteristics are favorable for COF to synthesize urea by reducing CO 2 in a green way. COF _PP-TAT exhibited a good CO 2 reduction (CO 2 RR) performance under photoelectrocatalytic (PEC) conditions with the stable production of urea (NH 2 CONH 2 ) at a rate of 0.32 µmol h -1 . That process accompanied by the production of ammonia (NH 3 ), formic acid (HCOOH) and carbon monoxide (CO). The synthesis mechanism was discussed.

Source: Scientific Reports

DOI: 10.1038/s41598-025-03944-2

Authors: Yi Liu, Zijian Zeng, Ruizhi Peng, Kexin Ma, Yun Li, Zhihong Yan

Institutions: Guangdong Pharmaceutical University, First Affiliated Hospital of Guangdong Pharmaceutical University

Language: English

Topic: CO2 Reduction Techniques and Catalysts

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Climate action

Open Access status: gold

Estimated APC paid: $2,690