CHEN Qingbo, LUO Laitao, WANG Jianxin. Effect of supports on activity of Au-Pd catalysts for partial oxidation of methanol[J]. CIESC Journal, 2008, (4): 898-903.
CHEN Qingbo, LUO Laitao, WANG Jianxin. Effect of supports on activity of Au-Pd catalysts for partial oxidation of methanol[J]. CIESC Journal, 2008, (4): 898-903.DOI:
Au-Pd catalysts were prepared by the deposition-precipitation method
and their activities for partial oxidation of methanol were evaluated. XRD
TPR and TPD were used to characterize the catalysts.In comparison to Au-Pd/CeO2-ZrO2 and Au-Pd/CeO2-TiO2 catalysts
the activity of Au-Pd/CeO2 catalyst for partial oxidation of methanol was higher
which can be related to the formation of more AuxPdy alloy and more oxygen vacancies.The hydrogen selectivity of Au-Pd/CeO2 was improved by using additional support (ZrO2 or TiO2)
probably due to a combination of different factors
such as increasing active surface area and dispersion.A higher hydrogen yield was found for Au-Pd/CeO2-ZrO2 and Au-Pd/CeO2-TiO2 catalysts because of their higher hydrogen selectivity.