Two step modification of Norit CNR115 active
carbon led to formation of mesoporous turbostratic carbon
structure. Ni-Pd catalysts were prepared by incipient
wetness impregnation of turbostratic active carbon with
an aqueous solution of nickel and palladium chloride salts
and were investigated by the Temperature-Programmed
Reduction (TPR), Scanning Electron Microscopy (SEM),
High Resolution Transmission Electron Microscopy
(HRTEM), X-Ray Diffraction (XRD) and Temperature-
Programmed Hydrogenation (TPH). The aqueous-phase
hydrodechlorination of 1,1,2-trichloroethene (TCE) were
carried out in a batch reactor at room temperature.
Addition of palladium to nickel catalysts resulted in
increasing of TCE conversion from 85% for Ni100 to more
than 90% for Ni95Pd05 after 150 minutes of reaction.
Aqueous-phase hydrodechlorination of TCE led to the
formation of hydrocarbons (ethane and ethene) as the
main products. Temperature-programmed hydrogenation
of the catalysts after kinetic run have shown that during
reactions with TCE only a small amount of carbon species
were deposited on the catalysts surface and that chloride
species were not observed.