Preparation of Colloidal Nanoparticles of Mixed Metal Oxides Containing 
Platinum, Ruthenium, Osmium, and Iridium and Their Use as Electrocatalysts

Reetz, Manfred T.; Lopez, Marco; Grünert, Wolfgang; Vogel, Walter; Mahlendorf, Falko

doi:10.1021/jp027785a

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Preparation of Colloidal Nanoparticles of Mixed Metal Oxides Containing Platinum, Ruthenium, Osmium, and Iridium and Their Use as Electrocatalysts

MPS-Authors

Reetz, Manfred T.
Max Planck Society;

/persons/resource/persons22202

Vogel, Walter
Molecular Physics, Fritz Haber Institute, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Reetz, M. T., Lopez, M., Grünert, W., Vogel, W., & Mahlendorf, F. (2003). Preparation of Colloidal Nanoparticles of Mixed Metal Oxides Containing Platinum, Ruthenium, Osmium, and Iridium and Their Use as Electrocatalysts. Journal of Physical Chemistry B, 107(30), 7414-7419. doi:10.1021/jp027785a.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0FA4-0

Abstract

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.