Assembly of functional Co(II)−organic frameworks through a mixed ligand strategy: structure, photocatalytic oxidation of sulfides and CO2 conversion

IF 6.5 1区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Catalysis Pub Date : 2026-03-01 Epub Date: 2026-01-13 DOI:10.1016/j.jcat.2026.116700

Tian-Cai Yue, Xin-Fang Wang, Jian-Bo Huang, Lu-Lu Wang, Duo-Zhi Wang

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Abstract

Four new Co(II)-based metal–organic frameworks (MOFs) were successfully synthesized by a mixed ligand strategy. The controllable transformation of the bridging groups in the secondary structural units was achieved by modulating the anions in MOFs 1–4. The catalytic performance study indicated that MOF 1 exhibited excellent photocatalytic activity for the oxidation of sulfides to sulfoxides under the air atmosphere and •O₂⁻ and ¹O₂ were the main active species in the photocatalytic reaction process. Furthermore, MOF 1 also could efficiently catalyze the carboxylative cyclization of propargylic amines with CO₂ and the possible catalytic mechanism was explored in detail. Importantly, MOF 1 can exhibit remarkable catalytic activity after five cycles in both reactions. Therefore, MOF 1 can be used as an efficient and stable heterogeneous catalyst for the oxidation of sulfides and the carboxylative cyclization of propargylic amines with CO₂.

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通过混合配体策略组装功能Co(II)−有机框架：结构，硫化物的光催化氧化和CO2转化

采用混合配体策略成功合成了四种新型Co（II）基金属有机骨架（MOFs）。通过调节mof 1 ~ 4中的阴离子，实现了二级结构单元中桥接基团的可控转变。催化性能研究表明，MOF 1在空气环境下对硫化物氧化成亚砜表现出优异的光催化活性，其中•O2−和1O2是光催化反应过程中的主要活性物质。此外，MOF 1还能有效地催化丙炔胺与CO2的羧化环化反应，并对其可能的催化机理进行了详细的探讨。重要的是，MOF 1在两个反应中经过5个循环后都表现出显著的催化活性。因此，MOF 1可以作为一种高效稳定的非均相催化剂用于硫化物氧化和丙炔胺与CO2的羧化环化反应。

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来源期刊

Journal of Catalysis 工程技术-工程：化工

CiteScore

12.30

自引率

5.50%

发文量

447

审稿时长

31 days

期刊介绍： The Journal of Catalysis publishes scholarly articles on both heterogeneous and homogeneous catalysis, covering a wide range of chemical transformations. These include various types of catalysis, such as those mediated by photons, plasmons, and electrons. The focus of the studies is to understand the relationship between catalytic function and the underlying chemical properties of surfaces and metal complexes. The articles in the journal offer innovative concepts and explore the synthesis and kinetics of inorganic solids and homogeneous complexes. Furthermore, they discuss spectroscopic techniques for characterizing catalysts, investigate the interaction of probes and reacting species with catalysts, and employ theoretical methods. The research presented in the journal should have direct relevance to the field of catalytic processes, addressing either fundamental aspects or applications of catalysis.