Preparation of Pd/Cu MCM-41 catalysts for hydrodechlorination: Influence of the synthesis procedure

- A series of Pd/Cu MCM-41 catalysts were prepared by different methods.
- Synthesis methods was demonstrated to be important chemical-physical properties.
- The deposition of Pd and Cu by incipient wet impregnation blocks the pores.
- In situ preparation keeps the structural and textural properties of bare supports.
- Activity in the hydrodechlorination of CF3OCFClCF2Cl to CF3OCFCF2 was tested.