Nanoscopic naked Cu/Pd alloy powders, particle size in 1−5 nm, were prepared by a cold alloying process. The formation of nanoscopic bimetallic hydroxide colloids as precursors of the nanoscopic alloy powders was studied by means of TEM, XRD, and a titration method. These bimetallic alloy powders have provided the first example of Cu-based catalysts with high activity, selectivity, and stability against air for the selective hydration of acrylonitrile to acrylamide.
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Wang et al. (1996) studied this question.
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