The formation of the dispersed phase was studied by absorption spectroscopy
in gamma-irradiated mixed aqueous solutions of Cu(II) and Pd(II) in presen
ce of isopropanol. The formation mechanism of bimetallic colloid was discus
sed through the comparisons with copper and palladium colloids. The crux of
the formation of Cu-Pd alloy was investigated through the influences of ex
perimental conditions on the formation of Cu-Pd alloy. (C) 1999 Elsevier Sc
ience Ltd. All rights reserved.