Fabrication of palladium/platinum core-shell nanoparticles by electroless metal plating

Authors

  • Yoshio Kobayashi Ibaraki University, Department of Biomolecular Functional engineering, College of engineering, Hitachi, Japan Author
  • Hideki Kunigami K. K. Shinko Kagaku Kogyosho, Koshigaya, Saitama, Japan Author

DOI:

https://doi.org/10.5937/ZasMat1802199S

Abstract

An electroless metal plating method was used to form metallic platinum (Pt) shells on metallic palladium (Pd) nanoparticles. The electroless metal plating method comprised two steps: (1) reduction of Pd ions to fabricate Pd nanoparticles and (2) deposition of Pt nuclei and the following formation of Pt shells by immersing the Pd nanoparticles in a Pt-plating solution. TEM observation revealed that the nanoparticles had a size of 5.7±1.9 nm, were composed of Pd nanoparticles as core and Pt shells. The Pd/Pt core-shell nanoparticles were immobilized electrostatically on carbon support surface-modified with poly(diallyldimethylammonium chloride) (Pd/Pt/C). Cyclic voltammetry revealed that the Pd/Pt/C exerted hydrogen adsorption/desorption, expecting the Pd/Pt/C to function as catalyst for fuel cell.

Keywords:

palladium, platinum, core-shell, particles, electroless metal plating, catalyst

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Published

15-06-2018

Issue

Vol. 59 No. 2 (2018)

Section

Articles