CATALYTIC ACTIVITY OF Ag-Pd NANOPARTICLES PREPARED BY N2H4 REDUCTION IN ELECTROLESS NICKEL DEPOSITION

作者：Lee Chien Liang^*; Tseng Chun Ming; Wu Chen Chung

来源：Journal of the Chinese Institute of Engineers, 2010, 33(1): 105-109.

DOI：10.1080/02533839.2010.9671602

• nanoparticle
• palladium
• kinetics
• activator

In this study we report on the catalytic activities of Ag/Pd alloy nanoparticles in electroless nickel deposition ( END). The Ag/Pd nanoparticles were prepared by N2H4 reduction. Three types of Ag/Pd alloy nanoparticles were prepared from the simultaneous reduction of coexisting Ag and Pd ions in an aqueous solution of sodium dodecyl sulfate (SDS)/N2H4. The particle sizes of the three types of bimetallic nanoparticles in the SDS bath maintained at a controlled temperature were found to be near equal. The results of energy dispersive X-ray and UV-Vis spectroscopy measurements indicate that the distribution of Ag atoms in the structure of the bimetallic nanocatalysts increases with the C-Ag(+)/C-Pd(2+) ratio. Quartz crystal microgravimetry results reveal that the activities of the Ag-10/Pd-1, Ag-1/Pd-1, and Ag-1/Pd-10 nanoparticles are 2.55 x 10(-3) cm(-2) . s(-1), 1.0 x 10(-2) cm(-2) . s(-1) and 3.04 x 10(-3) cm(-2) . s(-1), respectively.

• 出版日期2010-1