Effect of reduction temperature on structural properties and CO/CO2 hydrogenation characteristics of a Pd-CeO2 catalyst

  • Shen W
  • Ichihashi Y
  • Ando H
 et al. 
  • 9


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


The effect of the temperature of reduction on the activity and selectivity of a Pd-CeO2 catalyst was studied for the hydrogenation of CO and CO2. A drastic decrease in the overall conversions of carbon oxides and a significant modification in the product selectivity were observed when the catalyst was reduced at 773 K. The main reason for the decrease in the overall catalytic activity was the occurrence of severe sintering of palladium particles during high temperature reduction, evidenced by extended X-ray absorption fine structure (EXAFS) and X-ray diffraction (XRD) measurements. The remarkable changes in the selectivities of the products were explained by the decoration phenomenon of palladium surface by reduced ceria species due to the phase change between CeO2 and Ce2O3 upon reduction at 773 K. © 2001 Elsevier Science B.V.

Author-supplied keywords

  • Hydrogenation
  • Pd decoration
  • Pd-CeO2 catalyst
  • Sintering
  • XPS

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Wen-Jie Shen

  • Yuichi Ichihashi

  • Hisonori Ando

  • Yasuyuki Matsumura

  • Mitsutaka Okumura

  • Masatake Haruta

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free