Selective hydrodechlorination of 1,2-dichloroethane to ethylene over Pd-Ag/Al2O3 catalysts prepared by surface reduction

- Surface reduction method was used for preparation of Pd-Ag(Cu) bimetallic catalysts.
- Hydrodechlorination of 1,2-dichloroethane was investigated for production of ethylene.
- Ag(Cu) selectively deposited on Pd surface during surface reduction process.
- Ethylene selectivity was enhanced over Pd-Ag(Cu)/Al2O3 catalyst prepared by surface reduction.
- Isolated Pd site is the key species for ethylene selectivity.