Supportless oxygen reduction electrocatalysts of CoCuPt hollow nanoparticles

Jianbo Wu, Zhenmeng Peng, Hong Yang

Research output: Contribution to journalArticlepeer-review

Abstract

This paper describes a facile solution route to the synthesis of CoCuPt hollow nanoparticles that readily form chain-like structures in solution. The formation of porous CoCuPt nanostructure is through galvanic replacement with cobalt-containing cores as the templates. This approach does not require the further removal of templates and greatly simplifies the synthetic procedures. These porous CoCuPt nanoparticles can be used as supportless electrocatalysts that exhibit enhanced mass- and area-specific activities in the oxygen reduction reaction (ORR) over commercial Pt black catalysts. The highest ORR specific activity achieved so far for this ternary Pt-alloy catalyst is 0.37 mA cm-2 which is more than double that for Pt black.

Original languageEnglish (US)
Pages (from-to)4261-4274
Number of pages14
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume368
Issue number1927
DOIs
StatePublished - Sep 28 2010
Externally publishedYes

Keywords

  • CoCuPt
  • Hollow structure
  • Nanochain
  • Oxygen reduction reaction
  • Platinum alloy
  • Supportless

ASJC Scopus subject areas

  • Mathematics(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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