Preparation of Au/Y2O3 and Au/NiO catalysts by co-precipitation and their oxidation activities

▶ The catalytic activity of Au catalysts supported on Y2O3 and NiO prepared by co-precipitation was investigated for CO and methanol oxidation. ▶ The phase transformation of yttrium support greatly affected the CO oxidation activity. ▶ The Au/Y2O3 exhibited the same activity as Au/NiO for the methanol oxidation while the Au/NiO gave higher activity for CO oxidation.