Porphyrin-Based Covalent Organic Frameworks Anchoring Au Single Atoms for Photocatalytic Nitrogen Fixation

He, Ting; Zhao, Zhanfeng; Liu, Ruoyang; Liu, Xinyan; Ni, Bing; Wei, Yanping; Wu, Yinglong; Yuan, Wei; Peng, Hong‐Jie; Jiang, Zhongyi; Zhao, Yanli

doi:10.1021/jacs.2c10233

articleJournal of the American Chemical SocietyMar 8, 2023GREEN OA

Porphyrin-Based Covalent Organic Frameworks Anchoring Au Single Atoms for Photocatalytic Nitrogen Fixation

THTing He ZZZhanfeng Zhao RLRuoyang Liu XLXinyan Liu BNBing Ni

Nanyang Technological University · Tianjin University · +5 more institutions

PubMed

Indexed incrossrefpubmed

Abstract

The development of efficient photocatalysts for N2 fixation to produce NH3 under ambient conditions remains a great challenge. Since covalent organic frameworks (COFs) possess predesignable chemical structures, good crystallinity, and high porosity, it is highly significant to explore their potential for photocatalytic nitrogen conversion. Herein, we report a series of isostructural porphyrin-based COFs loaded with Au single atoms (COFX–Au, X = 1–5) for photocatalytic N2 fixation. The porphyrin building blocks act as the docking sites to immobilize Au single atoms as well as light-harvesting antennae. The microenvironment of the Au catalytic center is precisely tuned by controlling the functional groups at the…

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Topics & keywords

Topics

Keywords

Porphyrin
Chemistry
Photocatalysis
Isostructural
Catalysis
Covalent bond
Crystallinity
Nitrogen

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