Many researchers have been interested in the studies of various Pd nanoparticles with a particular attention to their potential to be used as chemoselective catalysts based on their unique size or shape. We are interested in the property of shape-controlled Pd nanoparticles and have applied to hydrogenation reactions. Pd nanocubes enclosed by {100} facets exhibited substantially enhanced selectivity of alkene in the hydrogenation of various kinds of alkynes relative to the commercial Pd/C catalyst, which is carbon-supported spherical Pd nanocrystals bounded by various facets such as {111}, {110}, and {100}. The Pd nanocubes exhibited higher alkene selectivity in the semihydrogenation of various alkynes and presented superior cis-selectivity. The shape control of Pd nanocrystals provides a simple and efficient way for generating highly selective catalysts for the alkyne semihydrogenation.

Shape-dependent catalytic activities of Pd nanoparticles on hydrogenation

246th National Meeting (2013)

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