Preparation and Characterization of Bimetallic Pd-Cu Colloids by Thermal Decomposition of Their Acetate Compounds in Organic Solvents

Preparation and Characterization of Bimetallic Pd-Cu Colloids by Thermal Decomposition of Their Acetate Compounds in Organic Solvents

Kunio Esumi, Takafumi Tano, Kanjiro Torigoe, and Kenjiro Meguro
University of Tokyo

Chem. Mater. 1990, 2, 564-567  (http://pubs.acs.org/doi/pdf/10.1021/cm00011a019)

Abstract:

Bimetallic Pd-Cu/Cu2O colloids are prepared by the thermal decomposition of their acetates dissolved in methyl isobutyl ketone and bromobenzene. In methyl isobutyl ketone, the average diameter of Pd-Cu2O colloids decreases from about 130 to 50 nm with an increase of molar fraction of palladium acetate, while in bromobenzene the size of Pd-Cu colloids increases from about 8 to 15 nm. The composition of Pd-Cu or Pd-Cu2O colloids is almost hte same as that of the feed ratio of their acetates. The dispersion stability of these colloids is further addressed by measuring their ζ potentials.