PtRu colloid nanoparticles for CO oxidation in microfabricated reactors

The catalytic activity of PtRu colloid nanoparticles for CO oxidation is investigated in microfabricated reactors. The measured catalytic performance describes a volcano curve as a function of the Pt/Ru ratio. The apparent activation energies for the different alloy catalysts are between 21 and 117...

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Bibliographic Details
Published in:Catalysis letters 2006-06, Vol.109 (1-2), p.7-12
Main Authors: KLERKE, Asbjørn, SAADI, Souheil, BOG TOFTEGAARD, Maja, THEILGAARD MADSEN, Anders, NIELSEN, Jane H, JENSENØ, Sren, HANSEN, Ole, HVIID CHRISTENSEN, Claus, QUAADE, Ulrich J
Format: Article
Language:English
Subjects:
Catalysis
Catalytic activity
Chemistry
Colloidal state and disperse state
Colloids
Exact sciences and technology
General and physical chemistry
Intermetallic compounds
Nanoparticles
Oxidation
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Reactors
Size distribution
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:The catalytic activity of PtRu colloid nanoparticles for CO oxidation is investigated in microfabricated reactors. The measured catalytic performance describes a volcano curve as a function of the Pt/Ru ratio. The apparent activation energies for the different alloy catalysts are between 21 and 117 kJ/mol, which agree well with literature. The size distribution of the colloid nanoparticles is determined from STM and TEM, from which an average size of the colloid nanoparticles of 2.2±0.5 nm is determined.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-006-0050-x