Design and Constrution of an Infrared Spectroscopic Cell for in Situ Stuides at Elevated Temperature and Pressure

An infrared spectroscopic cell for in situ studies at elevated temperature up to ca. 600℃ and pressure no less than 6MPa or vaccum 10^-4Pa has been designed and constructed. The cell consists of a stainless steel （1Cr 19Ni 9Ti） jacket, which the core of the reactor is laid in. There is a distributor in the core of the cell to prevent from short-path of fluid effectively. The cell has been empoled extensively for infrared investigation of reactive system of heterogeneous （gas-solid） phase. For hydrogenation of CO to ethanol synthesis, some important results have been obtained. They would be useful to elucidate the mechanism for this reaction. The cell can be also used to in situ UV-VIS stuides.