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Molecular Adsorbates at Single‐Crystal Platinum‐Group Metals and Bimetallic Surfaces
Author(s) -
Baltruschat Helmut,
Ernst Siegfried
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000644
Subject(s) - bimetallic strip , adsorption , monolayer , chemistry , platinum , molecule , desorption , platinum group , group (periodic table) , benzene , single crystal , inorganic chemistry , crystallography , photochemistry , catalysis , organic chemistry , biochemistry
The surface orientation of Pt‐group metals determines the kind of organic species (such as CO, benzene and ethene) that will adsorb on them as well as the prevailing reaction channels. Pt and Pd as well as (sub)monolayers of them on Au are compared, including mono‐ and multiatomic rows of Pd on stepped Au surfaces. In general, Pd is less active for oxidation or hydrogenation of the adsorbates. Desorption of the intact molecule is favored because of a lower adsorption strength.