Functionalized Ruthenium鈥揚hosphine Metal鈥揙rganic Framework for Continuous Vapor-Phase Dehydrogenation of Formic Acid

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• 作者：Amaia Beloqui Redondo ; Flavien L. Morel ; Marco Ranocchiari ; Jeroen A. van Bokhoven
• 刊名：ACS Catalysis
• 出版年：2015
• 出版时间：December 4, 2015
• 年：2015
• 卷：5
• 期：12
• 页码：7099-7103
• 全文大小：343K
• ISSN：2155-5435

文摘

Metal鈥搊rganic frameworks (MOFs) are ideal hosts for incorporation of molecular complexes without altering their original ligand environment; molecular catalysts can thus be easily synthesized and used in gas- and vapor-phase reactions operated in continuous mode. We report the immobilization of a molecular ruthenium complex in a phosphine-functionalized MOF that is highly efficient in the vapor-phase dehydrogenation of formic acid. The catalyst exhibited exclusive selectivity to hydrogen and carbon dioxide with outstanding stability at 145 掳C (TON > 1鈥?90鈥?00). Our results represent a noteworthy improvement over heterogeneous ruthenium systems in terms of selectivity in the gas-phase, while reaching a productivity level higher than that of state-of-the-art homogeneous catalysts.