62 - Methanol Steam Reforming over Copper Catalyst Prepared from Amorphous Cu-Zr Alloy with Minute Amounts of Noble Metals

Abstract

Methanol steam reforming was carried out over catalysts prepared from amorphous Cu-Zr alloys containing a small amount of noble metals. The reforming activity of the alloy with noble metal below 0.7at% decreased with repetition of oxidation, reduction and steam reforming sequences. The amorphous Cu-Zr alloys with small amounts of noble metals changed to fine copper particles supported on zirconium oxide by the heat treatment. Although the rate constant over the alloy with platinum was smaller than that over the alloy with rhodium, the carbon monoxide selectivity over the former was higher than that over the latter. These results suggest that the catalyst prepared from Cu-Zr alloy with lat% of platinum is suitable for the steam reforming.