Aperture-Opening Encapsulation of a Transition Metal Catalyst in a Metal-Organic Framework for CO2 Hydrogenation

作者：Li, Zhehui; Rayder, Thomas M.; Luo, Lianshun; Byers, Jeffery A.^*; Tsung, Chia-Kuang^*

来源：Journal of the American Chemical Society, 2018, 140(26): 8082-8085.

DOI：10.1021/jacs.8b04047

• CARBON-DIOXIDE
• SUPRAMOLECULAR HOST
• PINCER COMPLEX
• STABILITY
• MOLECULE
• FORMATES
• EXCHANGE
• UIO-66

The aperture-opening process resulting from dissociative linker exchange in zirconium-based metal-organic framework (MOF) UiO-66 was used to encapsulate the ruthenium complex ((PNP)-P-tBu)Ru (CO)-HCl in the framework (PNP)-P-tBu = 2,6-bis((di-tert-butyl-phosphino)methyl)pyridine). The resulting encapsulated complex, [Ru]@UiO-66, was a very active catalyst for the hydrogenation of CO2 to formate. Unlike the analogous homogeneous catalyst, [Ru]@UiO-66 could be recycled five times, showed no evidence for bimolecular catalyst decomposition, and was less prone to catalyst poisoning. These results demonstrated for the first time how the aperture-opening process in MOFs can be used to synthesize host-guest materials useful for chemical catalysis.

• 出版日期2018-7-4
• 单位上海科技大学