Interactions of [O.sub.2] with Pd nanaoparticles on alpha-[Al.sub.2][O.sub.3](0001) at low and high [O.sub.2] pressures
Article Abstract:
Temperature-programmed desorption (TPD), temperature-programmed low-energy ion scattering (TP-LEIS), and X-ray photoelectron spectroscopy (XPS) are used study the interaction of [O.sub.2] with small Pd particles (2-10 nm) supported on an alpha-[Al.sub.2][O.sub.3](0001) single crystal under ultrahigh vacuum (UHV) and high-pressure conditions. Results show that a low [O.sub.2] exposure (30L) at 500 K leads to surface oxygen adatoms on Pd nanoparticles supported on clean alpha-[Al.sub.2][O.sub.3](0001).
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Unusual CO adsorption sites on vanadium oxide-Pd(111) "inverse model catalyst" surfaces
Article Abstract:
The reactive sites of both oxidized and reduced vanadium oxide-Pd(111) surfaces are studied using the adsorption of CO as a test molecule for probing the free Pd sites. The adsorbate and substrate core level x-ray photoelectron spectroscopy (XPS) data indicate that on the reduced, S-V2O3-decorated Pd(111) surfaces, CO occupies the same adsorption site as on the clean Pd(111).
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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Structure and deformation of Pd-Ni core-shell nanoparticles
Article Abstract:
A study of the chemical structure and geometrical deformations in Ni-Pd core-shell particles supported on MgO is present by X-ray photoelectron spectroscopy (XPS) and various techniques of transmission electron microscopy (TEM). It investigates the catalytic properties of the pure metal and the bimetallic particles, toward CO oxidation.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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