Chloride free Pt- and PtRu- nanoparticles stabilised by "Armand's ligand" as precursors for fuel cell catalysts

H. Bönnemann, R. Brinkmann, S. Kinge, T. O. Ely, M. Armand

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Chloride residues on the surface of fuel cell catalysts are known to decrease the catalytic activity, especially for O2 reduction. Using Armand's ligand, which contains the chloride free DCTA anion, for the colloidal stabilisation of nanoscopic Pt and PtRu catalysts precursors (< 2 nm size) leads to PEMFC and DMFC catalysts with improved activity compared to commercial E-TEK catalysts as evidenced by both methanol oxidation and CO-stripping voltametric studies.

Original languageEnglish
Pages (from-to)289-296
Number of pages8
JournalFuel Cells
Volume4
Issue number4
DOIs
Publication statusPublished - Dec 1 2004

Keywords

  • Armand's Ligand
  • Nanoscopic Colloids
  • PEMFC and DMFC Catalysts

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology

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