Authors:Yinghua Li, Dae-Won Lee, Yoon-Ki Hong, Seong-Min Kim, Hyun-Sik Han, and Kwan-Young Lee
The performances of selective catalytic reduction (SCR) by CO/H2 over two Pd/TiO2/Al2O3 catalysts prepared from PdCl2 and Pd(NO3)2 precursors were compared. The catalytic activities (NOx conversion and N2 yield) were measured on these two catalysts. The catalytic properties of the prepared catalysts were studied by various characterization
techniques such as BET, CO-chemisorption, TEM, XPS, and TPD. The Pd precursors influenced the Pd particle distribution, resulting
in different catalytic activities.
Authors:C. Amairia, S. Fessi, A. Ghorbel, and A. Rîves
The second route used is the wet impregnation of a sol-gel derived Al 2 O 3 –ZrO 2 binary oxide prepared by using the same alkoxides mentioned above. A weighed amount of Pdprecursor, either Pd(C 5 H 7 O 2 ) 2 or Pd(NO 3 ) 2 was dissolved in an
Preparation of supported Pd catalysts
Supported Pd catalysts were prepared by the impregnation method using bis(acetylacetonato)palladium Pd(II)(acac) 2 as a Pdprecursor. The amount of Pd loading was fixed to be 2 wt%. Supports were immersed in