An Operando Nuclear Magnetic Resonance Study on Solid-Liquid-Gas Heterogeneous Benzene Hydrogenation Reaction

Abstract

The reaction of heterogeneous benzene hydrogenation reaction in a real solid-liquid-gas environment was studied by operando nuclear magnetic resonance (NMR) spectroscopy. During the reaction process, the products need not be separated before the test. Different catalysts (Pd nanoparticles and Pd with different crystal morphology) were performed to investigate the effects of pressure, reaction time and catalyst surface properties on benzene hydrogenation reaction. It was found that the pressure and the reaction time can affect the productivity of hydrogenation reaction, and the products of benzene hydrogenation reaction are determined by the exposed crystal surface of Pd catalysts. This operando NMR method provides a good opportunity to study the mechanism of solid-liquid-gas heterogeneous hydrogenation reaction.

Keywords

• operando nmr
• benzene hydrogenation reaction
• crystal morphology
• liquid nmr
• heterogeneous