PdNi hollow nanoparticles for improved electrocatalytic oxygen reduction in alkaline environments

Meng Wang, Weimin Zhang, Jiazhao Wang, David Wexler, Simon D. Poynton, Robert C T Slade, Huakun Liu, Bjorn Winther Jensen, Robert Kerr, Dongqi Shi, Jun Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

107 Citations (Scopus)


Palladium-nickel (PdNi) hollow nanoparticles were synthesized via a modified galvanic replacement method using Ni nanoparticles as sacrificial templates in an aqueous medium. X-ray diffraction and transmission electron microscopy show that the as-synthesized nanoparticles are alloyed nanostructures and have hollow interiors with an average particle size of 30 nm and shell thickness of 5 nm. Compared with the commercially available Pt/C or Pd/C catalysts, the synthesized PdNi/C has superior electrocatalytic performance towards the oxygen reduction reaction, which makes it a promising electrocatalyst for alkaline anion exchange membrane fuel cells and alkali-based air-batteries. The electrocatalyst is finally examined in a H 2/O2 alkaline anion exchange membrane fuel cell; the results show that such electrocatalysts could work in a real fuel cell application as a more efficient catalyst than state-of-the-art commercially available Pt/C.

Original languageEnglish
Pages (from-to)12708-12715
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number23
Publication statusPublished - 2013 Dec 11
Externally publishedYes


  • alkaline membrane fuel cell
  • bimetallic
  • hollow
  • oxygen reduction reaction
  • palladium nickel

ASJC Scopus subject areas

  • Materials Science(all)


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