Abstract

Highly active Au-containing hopcalite catalysts for ambient temperature CO oxidation have been prepared by a co-precipitation procedure. The addition of Au to the CuO–MnO system resulted in a marked improvement in the catalytic performance, by increasing the rate of CO oxidation and decreasing the extent of catalyst deactivation. The most active catalysts were CuMnOx with 3 wt % Au and these were prepared using a calcination temperature of 300 °C.

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