期刊
NANO RESEARCH
卷 15, 期 2, 页码 1500-1508出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-021-3694-3
关键词
single-atom site catalysts; porous organic ligand polymers; palladium catalysis; hydrosilylation; internal alkynes
类别
资金
- National Natural Science Foundation of China [22061003, 21861006]
- Guangxi Natural Science Foundation of China [2019GXNSFAA245027]
- Guangxi Key RD Program [AB18221005]
- Science and Technology Major Project of Guangxi [AA17204058-21]
- Guangxi Science and Technology Base, and Special Talents [AD19110027]
The study successfully achieved high catalytic performance in the hydrosilylation reaction of internal alkynes using porous organic ligand polymers as the carrier, improving selectivity and catalytic efficiency.
Single-atom site (SAS) catalysts have attracted considerable attention due to their excellent performance. However, most of the current research models of SAS catalysts are based on inorganic catalysts, where metal and coordination atom interaction cannot simulate the fine-tuning effect of organic ligands on metal catalytic centers in homogeneous catalysts. Therefore, certain chemical transformations in homogeneous catalysis cannot be perfectly replicated. Here, we used porous organic ligand polymers as the carrier, which effectively changes the charge regulation of nanoparticles and monoatomic metal catalysts. Drawing lessons from traditional homogeneous metal/ligand catalysis, we introduced various functional groups into the ligand polymers to adjust the electronic properties, and successfully realized the hydrosilylation of internal alkynes with high catalytic performance. The selectivity and catalytic efficiency under the Pd@POL-1 catalyst system were improved compared with previous studies. The internal alkynes with various structures can complete this reaction, and the ratio of E/Z can reach up to 100:1.
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