Characteristic of physicochemical properties of Pd/MgO catalysts used in the hydrodechlorination process with CCI₄

The aim of this paper was to investigate the physicochemical properties of palladium catalyst containing basic support MgO which was used in hydrodechlorination reaction with carbon tetrachloride. In order to characterize the investigated sample the catalyst was put to tests of XRD, TOF - SIMS, TG-DTA-MS and TPR_H2 measurements, activity tests were also performed. The XRD and TPR results demonstrated the presence of PdO_xCl_y species whose decomposition takes place above 700°C. The calcination of the Pd/MgO catalyst at 700°C resulted in the transformation of PdO_xCl_y to PdO.