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- Title
Single atom Pd<sub>1</sub>/ZIF-8 catalyst via partial ligand exchange.
- Authors
Li, Xin; Zhang, Fengwei; Han, Xu; Wang, Jun-Hao; Cui, Xiaoqin; Xing, Peng; Li, Huan; Zhang, Xian-Ming
- Abstract
A partial ligand exchange strategy for fabricating catalytically active single palladium site immobilized on zeolitic imidazolate framework-8 (ZIF-8, Pd1/ZIF-8) is proposed in this work. The one-step synthesis simply involves reacting Na2PdCl4 with ZIF-8 in solvent. The Cl ligands of Na2PdCl4 exchanged with 2-methylimidazole (2-MeIm) of the framework, resulting in the anchoring Pd on the framework and dissociation of Zn into the solution. The whole synthesis is performed at ambient conditions and the crystalline integrity of ZIF-8 is well retained. The resulting Pd1/ZIF-8 is extensively characterized by different techniques which confirm the proposed mechanism. Pd1/ZIF-8 is also successfully applied in the size-selective semi-hydrogenation of alkynes.
- Subjects
ATOMS; CATALYSTS; PALLADIUM; METAL-organic frameworks; ALKYNES
- Publication
Nano Research, 2023, Vol 16, Issue 5, p8003
- ISSN
1998-0124
- Publication type
Article
- DOI
10.1007/s12274-022-5351-7