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Are Particulate Noble‐Metal Catalysts Metals, Metal Oxides, or Something In‐Between?
Author(s) -
Goloboy James C.,
Klemperer Walter G.
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200805382
Subject(s) - noble metal , metal , particulates , catalysis , materials science , metallurgy , inorganic chemistry , chemistry , organic chemistry
A good model? Noble‐metal particulate catalysts often require small amounts of oxygen to obtain optimal activity. However, the structure and stoichiometry of the oxidized metal clusters involved remains obscure, even almost two hundred years after their discovery. A heteropolypalladate salt (see picture; Pd yellow, O red) now offers a view of how oxygen might be incorporated into small noble‐metal clusters.