期刊
CHEMICAL SCIENCE
卷 13, 期 29, 页码 8536-8542出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2sc02174a
关键词
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资金
- Research Center Program of the IBS in Korea [IBS-R006-D1]
- National Research Foundation [NRF-2018M3A7B4071204, NRF-2021R1A4A1032515]
- Research Resettlement Fund for new faculty of Seoul National University
- National Research Foundation of Korea (NRF) - Korea Government [2018M1A2A2061998]
This study introduces a heterogeneous catalyst for visible-light-driven C-N functionalization, consisting of single nickel atoms supported on carbon nitride. Compared to previous semi-heterogeneous systems, this catalyst exhibits high activity and stability, and achieves a complete photocatalytic cycle through metal-support interactions.
Visible-light-driven organic transformations are of great interest in synthesizing valuable fine chemicals under mild conditions. The merger of heterogeneous photocatalysts and transition metal catalysts has recently drawn much attention due to its versatility for organic transformations. However, these semi-heterogenous systems suffered several drawbacks, such as transition metal agglomeration on the heterogeneous surface, hindering further applications. Here, we introduce heterogeneous single Ni atoms supported on carbon nitride (NiSAC/CN) for visible-light-driven C-N functionalization with a broad substrate scope. Compared to a semi-heterogeneous system, high activity and stability were observed due to metal-support interactions. Furthermore, through systematic experimental mechanistic studies, we demonstrate that the stabilized single Ni atoms on CN effectively change their redox states, leading to a complete photoredox cycle for C-N coupling.
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