Studies on magnesia supported mono- and bimetallic Pd-Fe catalysts prepared by microwave irradiation method

Magnesia supported mono- and bimetallic Pd-Fe catalysts were prepared by co nventional and microwave irradiation method. The prepared catalysts were ch aracterised by Nz adsorption, temperature programmed reduction, selective h ydrogen chemisorption and X-ray diffraction (XRD). The conventionally prepa red catalysts after high temperature reduction (HTR) showed the formation o f Pd-Fe alloy. In the case of microwave irradiated catalysts the formation of Pd-Fe alloy is limited during HTR reduction. These catalysts activity wa s tested in hydrodechlorination (HDC) of chlorobenzene. The catalysts prepa red by microwave irradiation method are more active compared to conventiona lly prepared ones. The microwave irradiation leads to different morphology of the bimetallic catalysts, The HDC activity results are discussed in term s of structural differences between the catalysts prepared by conventional and microwave irradiation. (C) 2001 Elsevier Science B,V. All rights reserv ed.