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

Research output: Contribution to journalArticle

82 Citations (Scopus)

Abstract

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
Volume5
Issue number23
DOIs
Publication statusPublished - 2013 Dec 11
Externally publishedYes

Fingerprint

Palladium
Nickel
Fuel cells
Electrocatalysts
Oxygen
Nanoparticles
Anions
Ion exchange
Negative ions
Membranes
Catalysts
Alkalies
Nanostructures
Particle size
Transmission electron microscopy
X ray diffraction
Air

Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Wang, M., Zhang, W., Wang, J., Wexler, D., Poynton, S. D., Slade, R. C. T., ... Chen, J. (2013). PdNi hollow nanoparticles for improved electrocatalytic oxygen reduction in alkaline environments. ACS Applied Materials and Interfaces, 5(23), 12708-12715. https://doi.org/10.1021/am404090n

PdNi hollow nanoparticles for improved electrocatalytic oxygen reduction in alkaline environments. / Wang, Meng; Zhang, Weimin; Wang, Jiazhao; Wexler, David; Poynton, Simon D.; Slade, Robert C T; Liu, Huakun; Winther Jensen, Bjorn; Kerr, Robert; Shi, Dongqi; Chen, Jun.

In: ACS Applied Materials and Interfaces, Vol. 5, No. 23, 11.12.2013, p. 12708-12715.

Research output: Contribution to journalArticle

Wang, M, Zhang, W, Wang, J, Wexler, D, Poynton, SD, Slade, RCT, Liu, H, Winther Jensen, B, Kerr, R, Shi, D & Chen, J 2013, 'PdNi hollow nanoparticles for improved electrocatalytic oxygen reduction in alkaline environments', ACS Applied Materials and Interfaces, vol. 5, no. 23, pp. 12708-12715. https://doi.org/10.1021/am404090n
Wang, Meng ; Zhang, Weimin ; Wang, Jiazhao ; Wexler, David ; Poynton, Simon D. ; Slade, Robert C T ; Liu, Huakun ; Winther Jensen, Bjorn ; Kerr, Robert ; Shi, Dongqi ; Chen, Jun. / PdNi hollow nanoparticles for improved electrocatalytic oxygen reduction in alkaline environments. In: ACS Applied Materials and Interfaces. 2013 ; Vol. 5, No. 23. pp. 12708-12715.
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AB - 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.

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