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          Institute: Fritz-Haber-Institut     Collection: Molecular Physics     Display Documents



ID: 35315.0, Fritz-Haber-Institut / Molecular Physics
Preparation of Colloidal Nanoparticles of Mixed Metal Oxides Containing Platinum, Ruthenium, Osmium, and Iridium and Their Use as Electrocatalysts
Authors:Reetz, Manfred T.; Lopez, Marco; Grünert, Wolfgang; Vogel, Walter; Mahlendorf, Falko
Language:English
Date of Publication (YYYY-MM-DD):2003-07-10
Title of Journal:Journal of Physical Chemistry B
Journal Abbrev.:J. Phys. Chem. B
Volume:107
Issue / Number:30
Start Page:7414
End Page:7419
Copyright:American Chemical Society 2003.
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The hydrolysis of H2PtCl6, RuCl3, OsCl3, and H2IrCl6 under basic conditions in the presence of a water-soluble betaine stabilizer affords aqueous colloidal solutions of the mixed metal oxide PtRuOsIrOx displaying a particle size of 1.3-1.6 nm. The ratio of the four metals can be adjusted by choosing the appropriate relative amounts of metal salts. Characterization was accomplished by TEM, XPS, and XRD. Immobilization of the reduced form on high surface conducting carbon leads to materials which are excellent electrocatalysts showing unusually high resistance to CO poisoning.
External Publication Status:published
Document Type:Article
Communicated by:Gerard Meijer
Affiliations:Fritz-Haber-Institut/Molecular Physics
MPI für Kohlenforschung
External Affiliations:Ruhr-Universität Bochum, Germany; Universität Duisburg-Essen, Germany
Identifiers:URL:http://pubs.acs.org/cgi-bin/abstract.cgi/jpcbfk/20...
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